Reverse Engineering Projects for Freelancers

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145 projects published for past 72 hours.

Job Title	Budget	Published
3D Scan to CAD Cleanup for Printing	~13 - 27 USD	36 minutes ago	Client Rank - Good Payment method verified $9 965 total spent 13 hires 1 open job 5.00 of 9 reviews Registered: Feb 14, 2013 United Kingdom 4
Project Description – CAD Cleanup & Extraction From 3D Scan Hi, I’m looking for a skilled CAD artist experienced with mesh editing and reverse engineering to help with a small but precise task. GREAT ENGLISH IS A MUST I’ve 3D-scanned one full side of a damaged car bumper (see attached images). My goal is to extract a clean, accurate section of the bumper profile so I can 3D print it as a 2-foot-long template. The printed part will be used by a bodyshop as a physical reference to rebuild the missing section of the bumper. What I need you to do: Work on my raw 3D scan mesh (blue model). The scan is complete on one side of the bumper and captures the correct curvature and surface shape. Cut out the required section based on the areas I’ve indicated in red in the images. This cutout must follow the original bumper’s top profile and curvature. Only the outer surface needs to be clean and accurate. Internal thickness is not important. Clean the geometry of this extracted piece: Remove scanning noise and artefacts Smooth the surface where appropriate Ensure the border edges are clean and watertight Maintain overall curvature accuracy (no reshaping beyond cleanup) Prepare a printable STL The output must be a watertight, manifold STL ready for 3D printing. What I will provide: • The full raw 3D scan mesh (OBJ/STL) • Reference images with the exact section outlined in red Skills: 3D Rendering, Solidworks, AutoCAD, 3D Modelling, 3D Design, Reverse Engineering, 3D CAD, 3D Drafting Fixed budget: 10 - 20 GBP 36 minutes ago Websites, IT & Software, Design, Media & Architecture, Engineering & Science, 3D Rendering, 3D Modelling, 3D Design, Solidworks, AutoCAD, Reverse Engineering, 3D Drafting, 3D CAD Open project
Intricate 3D Printable Boat Hull	~166 - 498 USD	3 hours ago	Client Rank - Medium Payment method verified $146 total spent 1 hires 1 open job 5.00 of 1 reviews Registered: Aug 15, 2024 Australia 3
I have a collection of high-resolution photographs of an existing boat and I want that vessel turned into a single, watertight 3D file I can drop straight into my slicer for model-display printing. Because this piece will be shown up close, surface accuracy and small-scale details—strakes, rub rails, chine lines, deck camber, even the hatch cut-outs—matter a lot. You will work only from the photos provided, so part of the job is interpreting perspective and matching proportions faithfully; I will supply a few key dimensions to lock in scale. Feel free to use the toolchain you know best—Fusion 360, SolidWorks, Rhino, Blender, ZBrush or similar—as long as the final deliverables meet the criteria below. Acceptance criteria • Watertight STL (and original design file) ready for FDM or resin printing without post-repair • Overall length, beam and draft within ±0.5 mm of dimensions I give • Exterior surfaces smooth enough to print at 0.1 mm layer height with minimal sanding • Detail level clearly visible at 1:24 scale • Two quick revision rounds included to tweak geometry after I test-slice If you have experience reverse-engineering from photos or producing display-grade printable models, I’d love to see a couple of examples in your reply along with an estimated turnaround time. Skills: 3D Rendering, Solidworks, 3D Modelling, 3D Design, 3D Printing, Blender, 3D CAD, 3D Drafting Fixed budget: 250 - 750 AUD 3 hours ago Websites, IT & Software, Design, Media & Architecture, Engineering & Science, Product Sourcing & Manufacturing, Blender, 3D Rendering, 3D Modelling, 3D Design, Solidworks, 3D Printing, 3D Drafting, 3D CAD Open project
Expert Dot Net Developer Needed for Advanced Projects	5 - 15 USD / hr	4 hours ago	Client Rank - Risky Payment method not verified Phone number verified 2 open job no reviews Registered: Dec 4, 2025 India 20:34 1
We are seeking an expert Dot Net Developer with a deep understanding of bindings, deployments, IIS, and reverse engineering. The ideal candidate will have a proven track record of developing and deploying complex applications in a Dot Net environment. You will work on high-impact projects, collaborating with our team to optimize and enhance our existing systems. If you are passionate about coding and have the expertise to tackle challenging tasks, we want to hear from you! Hourly rate: 5 - 15 USD 4 hours ago Web, Mobile & Software Dev, Web Development Open project
Mobile App Security Researcher / Reverse Engineer (India-focused Apps)	not specified	7 hours ago	Client Rank - Risky Payment method not verified Phone number verified 1 open job Industry: Finance & Accounting Individual client Singapore 23:04 1
Description: We are looking for experienced mobile security researchers / reverse engineers to collaborate on a long-term project involving technical analysis of major Indian mobile applications (banking, wallet, payment-related apps). This is a security research & protocol analysis project. The purpose is to understand the client-side architecture, communication flows, cryptographic mechanisms, security controls, and API behavior. 🔍 Scope of Work You will be responsible for conducting static and dynamic analysis on mobile apps to produce: - High-level documentation of communication flows - API endpoints used by the mobile applications - Request/response structure and parameters - Security mechanisms used (encryption, signing, token lifecycle, OTP workflows, rate limits, device binding, etc.) - Architecture mapping (client-side logic, obfuscation techniques, hooking resistance, etc.) - Recommended approaches for legitimate server-to-server integrations, where applicable - Detailed research report + reproducible test scripts (e.g., Postman collections) 📌 Target Applications (Phase 1) We will begin with these major apps: - Paytm - MobiKwik - Airtel Payments - Freecharge - PhonePe More applications will be added continuously — this is a long-term engagement. 💰 Compensation: 1000U per APP Each completed application analysis will be compensated at a fixed rate of 1000U (currency unit). Payment will be issued upon delivery and acceptance of all required materials for each individual app. Researchers may claim multiple apps, and payments will be processed per-app basis. 🧩 Deliverables For each app, we expect: - A detailed PDF analysis report - Protocol/API documentation - Explanation of token generation and lifecycle - Analysis of OTP authentication workflow - Security model review - Optional: Code samples or proof-of-concept scripts demonstrating correct request formation (only using demo/test accounts, no real customer data) 🧠 Requirements - Strong experience in Android app reverse engineering - Familiar with tools: Frida, JADX, Objection, Ghidra, MobSF, mitm-proxy, etc. - Understanding of encryption, signing algorithms, SSL pinning bypass, certificate validation - Ability to produce clean, well-structured technical documentation - Familiarity with Indian fintech apps is a plus --- We look forward to working with skilled researchers. Budget: not specified 7 hours ago IT & Networking, Information Security & Compliance Open project
Mobile App Security Researcher / Reverse Engineer for India-Focused Apps	2,000 USD	8 hours ago	Client Rank - Risky Payment method not verified Phone number verified 1 open job Industry: Finance & Accounting Individual client Singapore 23:04 1
We are seeking a skilled Mobile App Security Researcher with expertise in reverse engineering to evaluate and enhance the security of applications focused on the Indian market. Your role will involve analyzing mobile apps for vulnerabilities, conducting penetration tests, and providing comprehensive security assessments. Ideal candidates should have a strong understanding of mobile app architecture and security protocols. If you are passionate about app security and thrive in a fast-paced environment, we want to hear from you! Fixed budget: 2,000 USD 8 hours ago IT & Networking, Information Security & Compliance Open project
Looking For Shopify Developer for High-Converting Dropshipping Stores + Advertorial Build	12 - 27 USD / hr	8 hours ago	Client Rank - Medium Payment method verified Phone number verified $930 total spent 1 hires, 6 active 4 jobs posted 25% hire rate, 1 open job 5.00 of 1 reviews Registered: Sep 15, 2025 United States FOUNTAIN VLY 09:04 3
I am hiring a Shopify developer who can model high-converting dropshipping stores and rebuild clean, professional, conversion-optimized versions for my brand. Your responsibilities include: * Reverse-engineering winning Shopify stores and replicating their structure, layout, and flow. * Applying strong CRO principles, including layout hierarchy, trust elements, objections, and social proof. * Building high-converting product pages, landing pages, advertorials, and listicles. * Integrating essential conversion-focused sections and features without unnecessary design fluff. * Working quickly while maintaining accuracy and consistent execution. Bonus points if you have experience with: * Elixir Theme or Shrine Theme * GemPages or PageFly * Creating pre-sale pages (Advertorials/Listicles) optimized for paid traffic * High-volume dropshipping stores What I’m looking for: Someone who understands what makes a Shopify store convert, can replicate competitor stores efficiently, and can turn reference stores into better-performing versions with minimal direction. To apply, please send: 1. Your portfolio 2. Examples of stores you have built or replicated 3. Your experience with Elixir, Shrine, GemPages, or PageFly 4. Your typical turnaround time for a complete store including pre-sale pages (Advertorials / Listicles) Looking to hire fast! Hourly rate: 12 - 27 USD 8 hours ago Client's recent history (7 works) Jobs in progress (6) Looking for Meta Video Creative Editor for Supplement Brand Oct 2025 - Present FIXED $90.00 Looking for Meta Video Creative Editor for Supplement Brand Oct 2025 - Present FIXED $120.00 Looking for Meta Video Creative Editor for Supplement Brand Oct 2025 - Present FIXED $490.00 Looking for Meta Video Creative Editor for Supplement Brand Oct 2025 - Present FIXED $30.00 Looking for Meta Video Creative Editor for Supplement Brand Oct 2025 - Present FIXED $40.00 Looking for Meta Video Creative Editor for Supplement Brand Sep 2025 - Present View more (1) Looking for Meta Video Creative Editor for Supplement Brand To freelancer: 5 Great job on the creative! Very skilled video editor. To client: 5 10/10 Sep 2025 - Oct 2025 FIXED $30.00 Web, Mobile & Software Dev, Ecommerce Development Open project
Android Developer & Reverse Engineer for SimosTool Customization	not specified	10 hours ago	Client Rank - Medium Payment method verified Phone number verified 1 open job no reviews Registered: Dec 2, 2025 Kazakhstan 20:04 3
We are seeking an experienced Android developer with reverse engineering skills to customize the standalone SimosTool application for ECU flashing. The ideal candidate will have a strong background in Android app development and be proficient in reverse engineering techniques to enhance the existing functionality of the app. This project will involve analyzing the current app, implementing custom features, and ensuring a seamless user experience. If you have a passion for automotive technology and the necessary expertise, we would love to hear from you! Java/Kotlin (UI, logic, file handling) Native C/C++ (.so, JNI) Complete UI rebranding (colors, icons, menu structure). Modification of application logic (Java/Kotlin + smali). Reverse engineering and patching of .so (native C/C++), identification of integration points. Creation of a new proprietary file format (BIN replacement). Encryption development: BIN → CUSTOM → BIN. Integration of encryption into the application (via Kotlin or JNI). More detailed information will be discussed in person. https://github.com/Switchleg1/SimosTools https://play.google.com/store/apps/details?id=com.app.simostools&hl=ru Budget: not specified 10 hours ago Web, Mobile & Software Dev, Mobile Development Open project
Senior Python/Scrapy Engineer for High-Volume Data Pipeline Refactor	800 USD	12 hours ago	Client Rank - Medium Payment method verified Phone number verified 1 jobs posted 1 open job no reviews Registered: Mar 20, 2024 United States 10:04 3
We’re looking for a high-caliber Python/Scrapy engineer to help evolve a production-grade data pipeline that powers analytics, dashboards, and machine-learning models. Your first engagement will focus on restructuring an existing category-based spider so that it: • Uses category-level requests only for lightweight product ID discovery, and • Shifts the bulk of extraction to direct product-detail pages using a more efficient, non-browser path, • With an option to limit requests to the top N products in each category. If the collaboration goes well, there is substantial follow-on work across backend development, additional scrapers, data engineering, and downstream ML model support. We value engineers who can understand and refactor complex systems efficiently and thoughtfully, with good judgment and clean design. ⸻ What you’ll work on (initial engagement) You will be given an existing Scrapy spider that: • Enumerates items from category endpoints, • Maps output into Python dataclasses, • Writes structured results into BigQuery for downstream analytics. Your role is to: 1. Re-architect the flow toward product-detail pages Without referencing or reverse-engineering any specific site, you will: • Update the spider so category requests perform minimal discovery work only. • For each discovered product ID, issue a second request to a product-detail URL pattern. • Extract the relevant structured data from the detail page (HTML + embedded JSON/state when present), and normalize it to the schema expected by our existing mapping utilities. 2. Route traffic by cost and complexity • Use Scrapy’s request metadata to indicate which requests should follow a heavier browser-rendered path and which should use a lighter non-browser path. • Integrate cleanly with an existing middleware that handles the routing logic (you won’t be asked to build a browser renderer). 3. Optionally restrict to “Top N” per category • Modify the discovery stage so only a fixed number (e.g., top 10) of the most relevant products per category are selected. • Implement this in a general way that does not depend on any proprietary or undocumented mechanisms. 4. Improve maintainability • Leave the spider structurally cleaner than you found it: clear callback boundaries, modular helpers, and sensible naming. • Document the design choices and any new assumptions. • Provide small test stubs or validation checks if helpful. ⸻ You are (requirements) • Expert-level Python & Scrapy developer, comfortable with multi-stage spiders, callbacks, and custom middleware. • Strong with structured data extraction, whether from HTML, JSON, or hybrid page states. • Experienced with anti-bot-aware scraping pipelines (high-level concepts only; no retailer-specific techniques required). • A clear and proactive communicator, able to explain reasoning, tradeoffs, and architectural choices. • Comfortable reading and refactoring existing codebases with attention to reliability and maintainability. Nice-to-haves: • Experience with BigQuery and data warehouse schemas. • Familiarity with hybrid scraping environments (browser + non-browser). • Background in data engineering and ML pipelines. ⸻ Future work (if this engagement is successful) • Building out/updating additional scrapers across multiple domains • Backend services and data ingestion flows • Integration work with downstream machine-learning models • Internal/client dashboards and visualization layers • Broader data-engineering and ETL development We aim to work with engineers who are talented, motivated, detail-oriented, and genuinely curious. ⸻ How to apply In your Upwork proposal, please include: 1. A concise description of a complex Scrapy spider you’ve built or refactored. 2. A brief explanation of how you would approach: • Extracting structured product data from product-detail pages in a general, site-agnostic way, and • Reducing reliance on heavier rendering paths. 3. A link to code samples or a GitHub snippet demonstrating relevant scraping or Python work (with any sensitive details removed). If you’re driven to build data and modeling systems that challenge conventional limits, we'd love to hear from you. Fixed budget: 800 USD 12 hours ago Data Science & Analytics, Data Mining & Management Open project
Python + Playwright Developer Needed for Job Data Collection System (150 Career Sites)	20 - 45 USD / hr	17 hours ago	Client Rank - Risky Payment method not verified Phone number verified 1 open job United States 09:04 1
We are building a production-grade job data collection platform that gathers publicly available job postings from 150+ company career pages. This will NOT involve reverse-engineering, bypassing authentication, or accessing private systems. All data collected is 100% publicly accessible and does not require login. What you will build: - Automated Playwright-based crawlers for public job listings - Standardized templates for various career page structures - Daily data collection pipeline - Detection of new vs closed roles - Error handling, retries, logging - PostgreSQL/Supabase integration - Dockerized deployment - Documentation + long-term maintainability Hourly rate: 20 - 45 USD 17 hours ago Web, Mobile & Software Dev, Scripts & Utilities Open project
Fix br2.0 Wallet Crashes	~333 - 1,000 USD	18 hours ago	Client Rank - Medium Payment method verified 1 open job 5.00 of 1 reviews Registered: Oct 5, 2025 Cambodia 3
My br2.0 Bridge base wallet runs for a while and then throws unexpected errors that crash the application outright. Transactions, sync, and startup all behave normally up to that point—the problem is the sudden, repeatable crash that interrupts everything afterward. I need someone who already understands the br2.0 code-base (or is comfortable reverse-engineering it), can replicate the fault on their own machine, locate the root cause, and deliver a stable build. If you can implement automated tests or logging to prove the fix is solid, even better. Deliverables • Debugged source with clear commit notes • Re-compiled wallet executable free of crashes • Short report outlining the cause and the steps taken to resolve it I can provide my current build, crash logs, and any additional details you require once we start. Skills: Software Testing, C++ Programming, Debugging, Software Development, Version Control Git, Application Performance Monitoring, Reverse Engineering, Software Engineering Fixed budget: 250 - 750 GBP 18 hours ago Websites, IT & Software, Software Testing, C++ Programming, Debugging, Software Development, Version Control Git, Application Performance Monitoring, Reverse Engineering, Software Engineering Open project
T65 Locator App – Contract Developer (with POC & Testing)	not specified	21 hours ago	Client Rank - Excellent Payment method verified $16 289 total spent 58 hires, 25 active 72 jobs posted 81% hire rate, 2 open job 6.60 /hr avg hourly rate paid 1 901 hours paid 4.97 of 29 reviews Registered: Jan 21, 2014 United States Duluth 12:04 5
Overview Seeking an experienced developer (or small team) to design and build a secure, compliant T65 Locator application that displays Medicare Turning 65 (T65) prospects on a map, filtered by age into Medicare timing and geography. The engagement includes delivering a working proof of concept (POC) and structured testing/validation before final acceptance. Responsibilities • Architect and develop a location based T65 Locator app (web and/or mobile) that: • Shows T65 leads on an interactive map centered on an agent’s location. • Supports radius filters, “months until 65” filters, and max results settings. • Displays lead details (name, address, distance, turning 65 date, notes/tags). • Enables actions such as save/favorite, update status/color, export lists, and tap to route in external maps. • Build the backend and data pipeline to: • Ingest and normalize licensed/owned T65 data from CSVs or approved APIs. • Geocode addresses and perform distance/radius queries. • Expose secure APIs for the app and future integrations (CRM, automation tools). • Implement authentication, authorization, and secure handling of PII. • Integrate basic hooks or endpoints for downstream marketing/CRM workflows. • Collaborate on a simple, intuitive UI suitable for field agents. Proof of Concept and Testing (Required) The scope must include a working POC and structured testing as part of delivery: • POC scope: • Login for test users. • Map screen with live T65 test data, radius and “months to 65” filters. • Lead markers on the map and a basic lead detail view. • Test plan: • Contractor provides a brief test plan covering core flows (login, map load, filter, open lead, export) and target devices/browsers. • Internal testing: • Contractor performs functional and cross device testing on agreed platforms before handing over for user testing. • User Acceptance Testing (UAT): • Client and pilot agents test the POC in a staging environment using predefined scenarios. • Contractor fixes all critical and high severity issues identified during UAT. • Acceptance criteria: • Final milestone payment is contingent on: • POC and production builds successfully deployed. • All agreed core flows working as documented. • No open critical/high severity defects and confirmation from client that UAT is passed. Required Skills • Proven experience building production mapping/location based apps (web or mobile) using Google Maps, Mapbox, or similar. • Strong backend skills (e.g., Node.js, Python) and SQL databases (PostgreSQL/MySQL) for geo queries and lead data. • Experience with secure authentication, authorization, and PII handling. • Portfolio showing lead generation, CRM, or sales enablement tools. • Comfortable documenting architecture, APIs, and deployment steps. Nice to Have • Experience in insurance, Medicare, or other regulated industries. • Familiarity with automation platforms (e.g., n8n/Zapier/Make) and CRM integrations. • Experience with multi tenant SaaS and role based access. Engagement Details • Type: Contract / project based, with option for ongoing improvements. • Budget: Open to proposals; looking for a fixed price quote with milestones (design, POC build, testing/UAT, production launch). • Location: Remote. • To apply: • Share portfolio links to relevant mapping/lead or CRM projects. • Describe your approach to testing and UAT on similar projects. • Propose a rough timeline and tech stack for delivering the POC and MVP. One can review other app for ideals of reverse engineering but do not violate any copyright laws or materials when developing. (Please confirm this understanding when responding.) Client's questions: Describe your recent experience with similar projects Describe your approach to testing and improving QA Budget: not specified 21 hours ago Client's recent history (49 works) Jobs in progress (13) n8n Automation Training Coach (Beginner to Intermediate) Aug 2025 - Present 4 hrs @ $0.00/hr n8n Workflow Developer Needed to Finalize and Test JSON Automation (Ongoing Work Available) Jun 2025 - Present 32 hrs @ $8.71/hr Billed: $278.79 Go High Level Setup Specialist May 2024 - Present 28 hrs @ $10.68/hr Billed: $297.20 Social Media Marketing Dec 2021 - Present 10 hrs @ $5.00/hr Billed: $50.00 Need Infusionsoft-Expert Sep 2018 - Present 4 hrs @ $15.00/hr Billed: $60.00 Setup Face Book Advertising Campaign Feb 2017 - Present 55 hrs @ $7.50/hr Billed: $410.00 Virtual Assistant and Social Media Marketer Feb 2017 - Present 10 hrs @ $6.00/hr Billed: $60.00 Penny Stock Home Study Course Jun 2016 - Present FIXED $1,347.00 Blend current Fast Money book with Covered Call book Apr 2016 - Present FIXED $185.00 Web Designer and restructuring website Oct 2015 - Present 10 hrs @ $6.67/hr Billed: $67.82 Virtual Assistant and Social Media Marketer Feb 2015 - Present 66 hrs @ $5.00/hr Billed: $328.34 Strong English--Content Writer Jun 2014 - Present 2 hrs @ $4.44/hr Billed: $9.62 Content writer May 2014 - Present 10 hrs @ $1.39/hr Billed: $13.90 View more (8) GoHighLevel Landing page and Automation No feedback given Nov 2025 n8n Lead Data Project No feedback given Aug 2025 Non Profit Grant Research Agent n8n No feedback given Jun 2025 n8n Workflow development, testing and implementation. No feedback given Jun 2025 129 hrs @ $8.08/hr Billed: $1,043.57 Virtual Assistant No feedback given Apr 2025 292 hrs @ $5.28/hr Billed: $1,539.51 Marketing Automation No feedback given Jun 2024 108 hrs @ $10.55/hr Billed: $1,140.70 Go high level 2 (TNT) No feedback given May 2024 5 hrs @ $0.00/hr Write 8 articles No feedback given Mar 2021 FIXED $90.00 Landing Page Building No feedback given Jun 2017 8 hrs @ $15.00/hr Billed: $120.00 Webinar Jam/Ever Webinar No feedback given Jan 2016 - Dec 2025 105 hrs @ $8.00/hr Billed: $836.00 Go High Level Setup Specialist No feedback given To client: 5 Apr 2024 - May 2024 4 hrs @ $1.93/hr Billed: $7.40 CERTIFIED ZAPIER \| Kajabi \| Shopify \| Lightspeed \| React.js No feedback given To client: 5 Dec 2021 - May 2022 FIXED $500.00 General Vitural Assistance No feedback given To client: 5 Great guy. Victor always made clear what he needs to get done within a very reasonable deadline. Very bright and very co… Great guy. Victor always made clear what he needs to get done within a very reasonable deadline. Very bright and very considerate. Thank you for the opportunity to work with you Victor. Apr 2014 - Apr 2022 73 hrs @ $5.56/hr Billed: $404.95 Editorial Director No feedback given To client: 5 Jul 2017 - Feb 2022 72 hrs @ $7.00/hr Billed: $507.51 Social Media Marketing No feedback given To client: 5 Great Jun 2017 - Aug 2019 290 hrs @ $10.00/hr Billed: $2,900.00 Infustionsoft and Thrive Themes expert No feedback given To client: 3.3 Oct 2018 - Jul 2019 6 hrs @ $20.00/hr Billed: $113.33 Infustionsoft and Thrive Themes expert No feedback given To client: 5 Last worked 11 months ago: Victor Napier was an extraordinary client. Apr 2018 - Apr 2019 20 hrs @ $12.50/hr Billed: $250.00 Graphic Designer Image Creation To freelancer: 5 Easy to work with. Dec 2018 - Jan 2019 FIXED $100.00 Wordpress /developer No feedback given To client: 4 The client is not responsive after pausing the project. Mar 2018 - Dec 2018 2 hrs @ $12.00/hr Billed: $24.00 Offer Content Writer No feedback given To client: 5 Mr. Napier was an excellent client - All expectations and requirements were communicated upfront, I enjoyed working with… Mr. Napier was an excellent client - All expectations and requirements were communicated upfront, I enjoyed working with him and hope to have the opportunity to work with him again. Mar 2018 - Jul 2018 FIXED $150.00 Green Screen replacement To freelancer: 5 Great Work! To client: 5 Long business relationship with him. It's nice to work! Mar 2018 - Apr 2018 FIXED $40.00 Looking for a experiened Web Developer to create a ecommerce wordpress website for our new company. To freelancer: 5 Excellent work! Would hire again! Awesome job! To client: 5 Feb 2018 - Mar 2018 FIXED $300.00 ThinkorSwim Setup To freelancer: 5 Great Work! To client: 5 It's nice to do business with him! I recommend Dec 2017 - Jan 2018 8 hrs @ $10.00/hr Billed: $80.00 Editing Video No feedback given To client: 5 Great cooperation! Apr 2017 - May 2017 2 hrs @ $10.00/hr Billed: $18.33 Need Help: Social Media Marketer and GetResponse worker To freelancer: 5 To client: 5 Great experience working with him. Feb 2017 - Mar 2017 3 hrs @ $15.00/hr Billed: $45.00 Video Editing and Reproduction individual needed No feedback given To client: 5 Excellent cooperation! A wonderful client. Mar 2017 - Mar 2017 2 hrs @ $20.00/hr Billed: $30.00 Video production To freelancer: 5 Great Job! To client: 5 My favorite employer! Jan 2017 - Jan 2017 FIXED $30.00 Video Editing To freelancer: 5 Great Job! To client: 5 Excellent client! I would hope for a new cooperation with him in the near future. Jan 2017 - Jan 2017 FIXED $20.00 Slide Show To freelancer: 5 Great Job! To client: 5 Excellent client. We work with them again and again. Oct 2016 - Nov 2016 FIXED $30.00 Video Editing and Reproduction individual needed To freelancer: 5 Great Work! To client: 5 Wonderful cheerful person and a great businessman. Most of all I am surprised by his ability to immediately respond to m… Wonderful cheerful person and a great businessman. Most of all I am surprised by his ability to immediately respond to my messages. Around the clock! He always know how the final result would be seen. He did not give little time to complete the work so that I always have time to do everything. It gave me pleasure to work with him. Feb 2016 - Jul 2016 27 hrs @ $7.77/hr Billed: $207.22 Profit Finder To freelancer: 5 Great working experience. To client: 5 It was my pleasure to work for Mr. Napier. Thank you. Jun 2015 - Mar 2016 FIXED $180.00 Marketing and Social Media Manager To freelancer: 1 No comment To client: 5 Please fix the misunderstanding. Dec 2015 - Dec 2015 10 hrs @ $3.33/hr Billed: $33.30 Locate and Research Competitors To freelancer: 5 Great Job! To client: 5 Sir Victor is Great Client and very Professional! Love to work again in the future. Thank you. Nov 2015 - Dec 2015 22 hrs @ $3.76/hr Billed: $82.09 Social Media Project Manager No feedback given To client: 5 Good client Jul 2014 - Jun 2015 268 hrs @ $3.33/hr Billed: $892.44 Affilate Program2 No feedback given To client: 5 I would recommend this client to every contractor. He is very kind and professional. The best client i had Apr 2014 - May 2015 212 hrs @ $3.68/hr Billed: $778.76 Transcribe No feedback given To client: 5 May 2014 - Jul 2014 FIXED $68.00 View more (34) Web, Mobile & Software Dev, Mobile Development Open project
Mobile App Reverse Engineering & API Security Audit (Android + iOS)	25 - 60 USD / hr	1 day ago	Client Rank - Excellent Payment method verified $4 581 312 total spent 162 hires, 9 active 218 jobs posted 74% hire rate, 3 open job 23.75 /hr avg hourly rate paid 188 238 hours paid 4.96 of 146 reviews Registered: Jul 1, 2015 Germany Nordkirchen 16:04 5
We are seeking a skilled professional to perform reverse engineering on our mobile applications for both Android and iOS platforms. The candidate will also conduct a thorough API security audit to identify vulnerabilities and recommend improvements. Ideal applicants should have experience with decompiling apps, analyzing code, and securing APIs. If you have a strong background in mobile app security and reverse engineering, we want to hear from you! Requirements: - Experience with Android/iOS reverse engineering or static analysis - Experience with mobile app security testing - Understanding of API communication between app and server - Ability to deliver fast (we need this done ASAP) - Clear reporting and communication Must be based in Europe. NDA must be signed before. Hourly rate: 25 - 60 USD 1 day ago Client's recent history (50+ works) Jobs in progress (3) Migration of AngularJS Application to Angular 15 with AI Tools Oct 2025 - Present 252 hrs @ $54.54/hr Billed: $13,735.52 Data Entry Specialist Needed for CRM/CMS Management Jun 2025 - Present 29 hrs @ $0.00/hr German-Speaking Customer Support Specialist for Video Calls May 2025 - Present 98 hrs @ $19.71/hr Billed: $1,921.44 View more (-2) DevOps - Network & Sys Admin No feedback given Jul 2021 3,703 hrs @ $32.67/hr Billed: $120,965.24 QA Specialist to join our team To freelancer: 5 Harutyun's proactive communication and dedication to delivering high-quality results make him a key player in our projec… Harutyun's proactive communication and dedication to delivering high-quality results make him a key player in our project’s success. His expertise in both manual and automated testing has ensured that our products meet the desired standard and we highly recommend him! Apr 2021 - Sep 2024 3,673 hrs @ $15.31/hr Billed: $56,220.45 Senior Android Developer To freelancer: 5 Ivan has been a crucial part of our mobile app development team for a long time, and his contributions have been nothing… Ivan has been a crucial part of our mobile app development team for a long time, and his contributions have been nothing short of excellent. His deep expertise in Android development helped us build high-quality, reliable mobile apps that have been crucial to our business. In addition to his development skills, Ivan has also provided top-notch ongoing maintenance, ensuring our apps remain stable and up to date. Ivan’s communication is always clear, and he’s consistently proactive when it comes to identifying and addressing potential issues. His dedication to both development and long-term support has been a tremendous asset to our projects. If you’re looking for a dependable, skilled Android developer who excels in both development and maintenance, we highly recommend Ivan! To client: 5 Working with Anne-Marie was an excellent experience! She is a wonderful manager and an amazing person. She was incredibl… Working with Anne-Marie was an excellent experience! She is a wonderful manager and an amazing person. She was incredibly helpful, making the work significantly easier due to her professional qualities. I was happy to be part of her team. Jun 2022 - Sep 2024 2,867 hrs @ $37.36/hr Billed: $107,109.73 Android developer to build a new app To freelancer: 5 Working with Sergey on the development of our Android apps was a fantastic experience. His technical expertise and dedic… Working with Sergey on the development of our Android apps was a fantastic experience. His technical expertise and dedication to delivering high-quality apps were evident throughout the project. Sergey was proactive, detail-oriented, and contributed significantly to improving the performance and usability of our applications. Highly recommend! To client: 5 Good client Dec 2020 - Sep 2024 545 hrs @ $25.00/hr Billed: $13,625.00 Wordpress developer for multiple projects To freelancer: 5 We had a fantastic experience working with Artem on our WordPress projects. His in-depth knowledge of WordPress and abil… We had a fantastic experience working with Artem on our WordPress projects. His in-depth knowledge of WordPress and ability to customize and optimize the platform was key to delivering a website that is both visually appealing and highly functional. Artem’s communication was clear and consistent, and he kept us updated throughout the project. He was quick to implement feedback and always went the extra mile to ensure everything was perfect. His attention to detail and dedication to delivering high-quality work really stood out. If you're in need of a skilled, reliable WordPress developer, we highly recommend Artem for your next project! To client: 5 Thank you, Anne-Maria! It was a great time working on your projects. Jun 2021 - Sep 2024 495 hrs @ $18.03/hr Billed: $8,920.05 Angular 13 developer for building V2 of our CMS To freelancer: 5 We had an excellent experience working with Karine on building the V2 of our platform using Angular 13. Communication wa… We had an excellent experience working with Karine on building the V2 of our platform using Angular 13. Communication was always on point, with regular updates and an open, collaborative approach. Karine was quick to address any feedback and worked efficiently to implement new features and improvements reason for which we highly recommend working with her! Feb 2022 - Sep 2024 1,068 hrs @ $22.69/hr Billed: $24,238.15 Android developer to join our team To freelancer: 5 We’ve had the pleasure of working with Pavel on several of our B2B products, and the experience has been outstanding. Th… We’ve had the pleasure of working with Pavel on several of our B2B products, and the experience has been outstanding. Throughout the projects, communication was always clear and consistent, with timely updates that kept us well-informed. Highly recommend! Nov 2020 - Sep 2024 10,031 hrs @ $25.82/hr Billed: $259,034.03 Senior iOS Developer To freelancer: 5 We had an outstanding experience working with Max's team on our iOS app. From the start, their communication was clear a… We had an outstanding experience working with Max's team on our iOS app. From the start, their communication was clear and consistent, and they kept us updated at every stage of the project. Were always open to feedback and made the necessary adjustments quickly and efficiently. Highly recommend! To client: 5 One of the best clients I ever had Mar 2022 - Sep 2024 732 hrs @ $25.55/hr Billed: $18,706.87 Spanish Translator, Customer Support and Data Entry person To freelancer: 5 Working with Ariadna was a real pleasure! She was very involved in translating our projects and we were very satisfied w… Working with Ariadna was a real pleasure! She was very involved in translating our projects and we were very satisfied with the work she provided. Jul 2022 - Sep 2024 392 hrs @ $7.35/hr Billed: $2,882.42 Full-Stack Developer To freelancer: 5 Karen's expertise in frontend development made the entire process smooth and efficient. From the very beginning, communi… Karen's expertise in frontend development made the entire process smooth and efficient. From the very beginning, communication was clear and consistent, with regular updates that kept us informed every step of the way. If you're looking for a reliable, skilled, and proactive web and server developer, he is the perfect choice! To client: 5 Mar 2023 - Sep 2024 1,287 hrs @ $17.34/hr Billed: $22,312.52 Senior Backend Javascript developer - 3 yrs. experience in Node and API development To freelancer: 5 Maxim's technical expertise in back-end development was impressive, making the entire process smooth and efficient. We w… Maxim's technical expertise in back-end development was impressive, making the entire process smooth and efficient. We were particularly impressed with their problem-solving skills and attention to detail, ensuring our project ran flawlessly. If you're looking for a reliable, skilled, and proactive web and server developer, he is the perfect choice! To client: 5 One of the best clients I ever had Apr 2021 - Sep 2024 5,506 hrs @ $25.85/hr Billed: $142,309.50 Looking for: Senior iOS developer To freelancer: 5 We had an amazing experience working with Volpis. Communication was seamless, with timely updates and a great sense of c… We had an amazing experience working with Volpis. Communication was seamless, with timely updates and a great sense of collaboration. Any feedback we provided was quickly addressed, and they went above and beyond to ensure the app met all of our requirements. To client: 5 It was a nice cooperation! Recommend Anne-Marie as a client. Sep 2023 - Sep 2024 1,144 hrs @ $31.50/hr Billed: $36,038.95 MEAN stack developer - AngularJS, Node.js ,MongoDB, Express.js To freelancer: 5 Narek's technical expertise in front and back-end development was impressive, making the entire process smooth and effic… Narek's technical expertise in front and back-end development was impressive, making the entire process smooth and efficient. We were particularly impressed with their problem-solving skills and attention to detail, ensuring our project ran flawlessly. If you're looking for a reliable, skilled, and proactive web and server developer, he is the perfect choice! To client: 5 It was pleasure to work with you. Happy to have such a productive cooperation. Will be glad to work with you again in th… It was pleasure to work with you. Happy to have such a productive cooperation. Will be glad to work with you again in the future. Jan 2021 - Sep 2024 6,575 hrs @ $23.41/hr Billed: $153,921.51 Front End Developer: Node JS, Javascript, HTML 5. VUE JS To freelancer: 5 Sergey was responsible for our front ends and he managed to admin and manage quite a few projects in all this time. With… Sergey was responsible for our front ends and he managed to admin and manage quite a few projects in all this time. With an eye for details and attention to layouts, we could notice a reduction in reportings. We wish him all the best and hope to work again in future! Jun 2021 - Dec 2022 3,207 hrs @ $16.31/hr Billed: $52,306.80 Translate website from English to French To freelancer: 5 Jeanne did an amazing job translating our marketing materials and websites from English to French. High quality work pro… Jeanne did an amazing job translating our marketing materials and websites from English to French. High quality work provided in a timely manner, highly recommend! To client: 5 Nov 2020 - Oct 2022 81 hrs @ $14.50/hr Billed: $1,179.33 Translate website from English to Spanish To freelancer: 5 Lucia did a great job translating our projects (websites and marketing materials) from English to Spanish. Highly recomm… Lucia did a great job translating our projects (websites and marketing materials) from English to Spanish. Highly recommend To client: 5 Nov 2020 - Oct 2022 34 hrs @ $18.00/hr Billed: $609.00 Translate website from English to Arabic To freelancer: 5 Mahmoud managed to translate our English strings in Arabic while respecting our tight deadlines. Highly recommend! Nov 2020 - Oct 2022 133 hrs @ $20.00/hr Billed: $2,660.00 German - Italian / German - English translation of some marketing materials To freelancer: 5 Quality translations in a timely manner! We highly recommend Thomas for all type of translations projects. To client: 5 It was a pleasure to work with you! Mar 2021 - Oct 2022 FIXED $865.00 Translate web projects/apps / other materials from English to Polish To freelancer: 5 Kat did a great job with translating our English strings in Polish. She managed to respect all deadlines while providing… Kat did a great job with translating our English strings in Polish. She managed to respect all deadlines while providing quality translations for our projects. Highly recommend! To client: 5 Great client experience! Thanks for everything Anne-Marie :) May 2021 - Oct 2022 34 hrs @ $15.00/hr Billed: $502.50 Translate web projects/apps / other materials from English to Romanian To freelancer: 5 Bianca managed to provide quality translations while respecting the deadlines. Highly recommend! To client: 5 Excellent communication, detailed instructions and doable deadlines. I would recommend working with Anne! May 2021 - Oct 2022 47 hrs @ $15.00/hr Billed: $705.00 Translate website from English to Spanish To freelancer: 5 Quality translations in a timely manner! Highly recommend! To client: 5 An A-class client! May 2021 - Oct 2022 158 hrs @ $15.00/hr Billed: $2,372.50 English - Swedish translator for website and mobile app strings To freelancer: 5 She did a good job translating our english strings in Swedish. Highly recommend! To client: 5 Great client! Recommend working with her :) Sep 2022 - Oct 2022 31 hrs @ $26.25/hr Billed: $818.12 English - Swedish translator for website and mobile app strings To freelancer: 5 Morgan did a great job translating our English strings in Swedish. He respected deadlines and estimations and delivered … Morgan did a great job translating our English strings in Swedish. He respected deadlines and estimations and delivered everything in time. Highly recommend! Sep 2022 - Oct 2022 65 hrs @ $21.00/hr Billed: $1,354.50 English - Swedish translator for website and mobile app strings To freelancer: 2.1 What a normal translator can do in 2 weeks is done by this guy in double the time. Avoid any collaboration with him. To client: 5 Had a very pleasant experience with working together with Anne-Marie on this project. Jul 2022 - Oct 2022 480 hrs @ $15.75/hr Billed: $7,562.63 English - Polish translator for website and mobile app strings To freelancer: 5 Martyna was among the few translators able to finish her work on time, without needing too much guidance. We highly appr… Martyna was among the few translators able to finish her work on time, without needing too much guidance. We highly appreciate her efforts to have the documents and materials translated on time. Thank you very much and keep up the good work! To client: 5 It was simply a pleasure to work on this project, which was interesting itself. The communication was great and all my … It was simply a pleasure to work on this project, which was interesting itself. The communication was great and all my questions were answered very quickly. Thank you! I would love to work together again:) Jul 2022 - Oct 2022 218 hrs @ $18.90/hr Billed: $4,113.90 Dutch Translator, Customer Support and Data Entry person To freelancer: 5 Jul 2022 - Oct 2022 8 hrs @ $16.80/hr Billed: $131.60 English - Czech translator for website and mobile app strings To freelancer: 3.1 Freelancer just stopped working without informing us about his intentions. Jul 2022 - Sep 2022 39 hrs @ $13.65/hr Billed: $527.80 English to Spanish translation of 2 marketing materials To freelancer: 5 Great quality of work! To client: 5 Jun 2022 - Aug 2022 4 hrs @ $21.00/hr Billed: $73.50 English - Czech translator for website and mobile app strings To freelancer: 1 Can't rate anything related to this freelancer as he disappeared after applying and joining our organization. He didn't … Can't rate anything related to this freelancer as he disappeared after applying and joining our organization. He didn't start any work and he stopped responding. Jul 2022 - Jul 2022 1 hrs @ $10.50/hr Billed: $7.00 Spanish Customer Support and Data Entry person No feedback given To client: 4.1 One downside is that at the beginning of the contract it was not communicated clearly that I had to keep asking for task… One downside is that at the beginning of the contract it was not communicated clearly that I had to keep asking for tasks. But overall it is a good client to work with! They are always available for clarifications or doubts and are also very kind. The project is also quite interesting. Jan 2022 - Apr 2022 17 hrs @ $16.00/hr Billed: $277.33 Wanted: Talented video editor (for fitness videos To freelancer: 5 Mykola was very fast in editing our videos and make them suitable for our platform. He followed our guidelines and was a… Mykola was very fast in editing our videos and make them suitable for our platform. He followed our guidelines and was able to deliver everything on time. May 2021 - Mar 2022 17 hrs @ $10.00/hr Billed: $171.67 Translate website from English to Portugese To freelancer: 5 Graziani did a great job in translating our projects from English to Portuguese and we highly recommend her for similar … Graziani did a great job in translating our projects from English to Portuguese and we highly recommend her for similar jobs. She clarified all the things which were not clear before proceeding and she provided all the work in time. To client: 5 It was a pleasure. I had no problem working with this client, all my questions were promptly answered I would be happy t… It was a pleasure. I had no problem working with this client, all my questions were promptly answered I would be happy to collaborate again in the future! Thank you so much! Jun 2021 - Mar 2022 96 hrs @ $15.00/hr Billed: $1,442.50 HTML website for company presentation To freelancer: 4.6 Page was done in time but it required amendments. All in all it was a good experience working with Suresh. To client: 5 We really enjoyed working with Anne-Marie H. We really wish to work on her future's projects. Sep 2021 - Mar 2022 20 hrs @ $15.00/hr Billed: $295.00 HTML website for company presentation To freelancer: 4.4 Work was done on time but we had to do many corrections. To client: 5 Sep 2021 - Feb 2022 16 hrs @ $15.00/hr Billed: $232.50 HTML website for company presentation No feedback given To client: 5 Sep 2021 - Dec 2021 FIXED $1,650.00 Wordpress developer for multiple projects No feedback given To client: 5 Great employer. Clean instructions, nice communication, payment on time. It was very nice to work with. Feb 2021 - Oct 2021 35 hrs @ $20.00/hr Billed: $690.00 ENG - IT translations for a health app No feedback given To client: 5 Aug 2021 - Aug 2021 3 hrs @ $18.00/hr Billed: $48.00 Senior iOS Developer To freelancer: 5 Data helped us with reworking different parts of our apps and also implemented some brand new features. We can't complai… Data helped us with reworking different parts of our apps and also implemented some brand new features. We can't complain about anything, although there were times when we'd wish the tasks would have been finished a bit faster. In the end, it's all about individual working rhythm. In general, we were satisfied about his work and communication/cooperation skills. Wish him the best of luck! To client: 5 It was a great experience. I really enjoyed working on this project with the team. And I am very happy with our cooperat… It was a great experience. I really enjoyed working on this project with the team. And I am very happy with our cooperation with Anne-Marie. It was a pleasure. Thank you very much! Dec 2020 - Aug 2021 1,341 hrs @ $25.00/hr Billed: $33,525.00 HTML website for company presentation To freelancer: 5 To client: 5 Jul 2021 - Aug 2021 37 hrs @ $15.00/hr Billed: $547.50 ENG - IT translations for one page website To freelancer: 5 Another job finished successfully! Will contact her for additional work soon To client: 5 Jul 2021 - Jul 2021 1 hrs @ $18.00/hr Billed: $12.00 DevOps needed for maintaining our system To freelancer: 5 May 2021 - Jul 2021 55 hrs @ $30.00/hr Billed: $1,635.00 ENG - IT translator for website and mobile app strings To freelancer: 5 Chiara finished the work in no time! Highly recommend her for Italian translation jobs and will definitely contact her f… Chiara finished the work in no time! Highly recommend her for Italian translation jobs and will definitely contact her for future projects. To client: 5 Jun 2021 - Jun 2021 10 hrs @ $15.00/hr Billed: $142.50 HTML website for company presentation To freelancer: 5 Their team was very fast and responsive. If we will have similar projects in future we will definitely call them in! To client: 5 May 2021 - Jun 2021 15 hrs @ $15.00/hr Billed: $225.00 Backend Javascript developer - 3 yrs. experience in Node and API development To freelancer: 5 Thiago did a great job while working in our API devs team. Unfortunately the collaboration had to stop because of person… Thiago did a great job while working in our API devs team. Unfortunately the collaboration had to stop because of personal reasons invoked by him. Wish him best of luck. To client: 5 Anne-Marie is an excellent client. Highly recommended. Jan 2021 - Apr 2021 155 hrs @ $29.00/hr Billed: $4,499.82 German - Italian / German - English translation of some marketing materials To freelancer: 5 Cristina did a great job translating our marketing materials. She was able to keep the deadline and provided work in a t… Cristina did a great job translating our marketing materials. She was able to keep the deadline and provided work in a timely manner. Will definitely contact her for future jobs! To client: 5 Anne-Marie and her team are the perfect client to work with: clear details about the job, availaible for questions and t… Anne-Marie and her team are the perfect client to work with: clear details about the job, availaible for questions and totally good communication. Highly raccomended! Mar 2021 - Apr 2021 FIXED $200.00 URGENT: Translate marketing materials To freelancer: 5 Thomas did a great job translating our marketing materials from German to English. Even if he wasn't familiar with our t… Thomas did a great job translating our marketing materials from German to English. Even if he wasn't familiar with our topics, his translations were very natural. Would definitely contact him for future jobs! To client: 5 Anne was a pleasure to work with. Mar 2021 - Mar 2021 FIXED $250.00 Samsung TV app developer To freelancer: 3.6 We're in a hurry with getting our app done so decided to hire someone else do the job faster. Not doubting his skills, m… We're in a hurry with getting our app done so decided to hire someone else do the job faster. Not doubting his skills, maybe he just didn't have enough time to spend for our app/analyze API and etc. The idea was to get the app ready in a month or so, but one month and a half already passed and there isn't significant progress. Nov 2020 - Dec 2020 21 hrs @ $35.00/hr Billed: $746.67 View more (45) Web, Mobile & Software Dev, Mobile Development Open project
Expert Automation Developer Needed for High-Speed, Real‑Time Ticket Booking Bot	500 USD	1 day ago	Client Rank - Medium Payment method verified Phone number verified 1 jobs posted 2 open job no reviews Registered: Dec 1, 2025 Saudi Arabia 18:04 3
We are seeking an experienced developer to build a high-performance ticket booking bot that automates bookings through the site’s API. The bot should efficiently handle multiple accounts, seat selection, and booking notifications to streamline the reservation process. Detailed Requirements: • Bot must interact directly with the ticketing API (no browser automation). • Support multiple accounts, with each account able to book up to the maximum allowed tickets. • Ability to target specific blocks, sections, or categories of seats. • Handle multiple simultaneous booking attempts for efficiency. • Send real-time notifications for successful bookings (e.g., via Telegram) with full booking details. • Support proxy integration for multiple accounts to manage network requests efficiently. • Fast execution with minimal latency, robust error handling, and retry logic for reliability. Notes: • Only developers with proven experience in ticket booking bots or similar high-performance automation, skilled in API analysis, network requests, and reverse engineering, should apply. Fixed budget: 500 USD 1 day ago Web, Mobile & Software Dev, Scripts & Utilities Open project
CAD drawing from picture	not specified	1 day ago	Client Rank - Excellent Payment method verified $4 819 total spent 42 hires, 8 active 52 jobs posted 81% hire rate, 1 open job 8.74 /hr avg hourly rate paid 253 hours paid 4.86 of 29 reviews Registered: Jan 11, 2014 Denmark Gilleleje 16:04 5
Hello, We need CAD drawing for different sizes Round thread die adapter. we need to send that to our manufacturer so he could produce it. Some dimensions for you. We need 7 different sizes they are the same shape just inner bore diameter different and thread diameter for does two screws are different., i can provide you first (smallest) size we need. Hex Adapter Ring – Dimensional Data Units: mm Main geometry Outside shape: regular hexagon Across flats (A/F): 28 Overall height: 9.5 Central bore: Ø20 × 7 deep from the top face Bottom thickness under bore: 2.5 (9.5 − 7) Radial wall thickness: 4.0 (from 20 → 28 A/F) Screw holes 2× M4 × 0.7 threaded holes Orientation: radial from the flats into the Ø20 pocket Angular position: on adjacent flats (90° apart around the centre) Height position: hole centre at 3.5 mm from the top face (mid-height of the 7 mm pocket so the screws bear on the round die) inside bore can be offset +0.2mm so the thread die could fit easily. Other inner sizes we will need 25x9mm, 30x11mm, 38x14mm, 45x14mm, 55x16mm, 65x18mm. Budget: not specified 1 day ago Client's recent history (45 works) Jobs in progress (6) We need this video edited for an exhibition Oct 2025 - Present 5 hrs @ $12.50/hr Billed: $62.49 Data Entry May 2024 - Present 35 hrs @ $6.41/hr Billed: $221.25 GRAPHIC of 3 different diagrams Mar 2024 - Present 61 hrs @ $12.68/hr Billed: $771.45 Photo rendering May 2023 - Present FIXED $160.00 Looking for product photography editor. Nov 2020 - Present 9 hrs @ $5.00/hr Billed: $46.67 Template for our labels Jan 2016 - Present FIXED $40.00 View more (1) Sketch / rendering No feedback given Nov 2021 2 hrs @ $30.00/hr Billed: $60.00 Photo shop No feedback given Jan 2020 FIXED $150.00 excel text To freelancer: 5 Sep 2020 - Dec 2024 61 hrs @ $5.26/hr Billed: $322.91 Vector file To freelancer: 5 Mar 2021 - Dec 2024 2 hrs @ $8.01/hr Billed: $16.01 Power Point Slide - Professionel looking To freelancer: 3 May 2017 - May 2024 15 hrs @ $10.00/hr Billed: $150.00 EXCEL Diagram - urgent job To freelancer: 5 To client: 5 Mar 2023 - May 2024 FIXED $20.00 Data specialist To freelancer: 5 Highly recommended. I would work with Lucas again any time. Mar 2024 - Mar 2024 6 hrs @ $1.90/hr Billed: $11.07 Data Sheet Template No feedback given To client: 5 Dec 2023 - Mar 2024 1 hrs @ $18.70/hr Billed: $18.70 Product Image Editing To freelancer: 5 She did an ok job. To client: 1 Nov 2020 - May 2023 4 hrs @ $7.00/hr Billed: $29.15 Infografic To freelancer: 5 Super job - and very fast response To client: 5 It was a wonderful experience with him and I appreciate his collaboration throughout the project. Would love to assist h… It was a wonderful experience with him and I appreciate his collaboration throughout the project. Would love to assist him again and again. Thank You!!! Apr 2023 - Apr 2023 FIXED $51.25 Excel Lopslag No feedback given To client: 5 Nov 2021 - Dec 2022 9 hrs @ $5.00/hr Billed: $47.50 Sketch / rendering To freelancer: 5 Very fast in responding and very creative To client: 5 I like to have work with Erick. And would like to work again. Thank you for this experience! Oct 2021 - Nov 2021 5 hrs @ $30.00/hr Billed: $150.00 Sketch / rendering To freelancer: 5 Super work. Im very happy To client: 5 Erick is the best, super friendly, and cool. 100% recommended Oct 2021 - Oct 2021 5 hrs @ $20.00/hr Billed: $106.67 Excel - Change of text in Excel To freelancer: 5 Mar 2018 - Oct 2021 FIXED $195.00 Drawing of Annex To freelancer: 4.5 Jan 2021 - Oct 2021 FIXED $270.00 Squarespace - update To freelancer: 5 To client: 5 Great experience, client was always available and gave useful feedback. Would work with them again. Oct 2020 - Dec 2020 5 hrs @ $17.00/hr Billed: $84.99 Power Point Slide - Professionel looking To freelancer: 5 Great Jun 2017 - Nov 2020 FIXED $30.00 Photo shop of product pictures. Clean up and add logo To freelancer: 4.4 Fast to answer questions. To client: 3.3 Thanks for the job until next time you need me. Feb 2020 - Nov 2020 20 hrs @ $5.00/hr Billed: $97.50 EXCEL PIM data To freelancer: 5 Very well done To client: 5 It's always a pleasure to work with Eric. Customer recommended Sep 2020 - Sep 2020 5 hrs @ $5.00/hr Billed: $23.34 Squarespace - update To freelancer: 4.5 Job done To client: 5 Sep 2020 - Sep 2020 3 hrs @ $12.50/hr Billed: $37.50 TYPE DATA IN EXCEL No feedback given To client: 5 I'm glad to work with Erick! He is very polite and professional! I will work again on his projects :) Jan 2020 - Jan 2020 FIXED $15.00 excel DB sept 19 To freelancer: 5 Super job - fast ! To client: 5 Great client Sep 2019 - Oct 2019 FIXED $10.00 Add on to house To freelancer: 5 Thanks A ! To client: 5 I was glad to work with Ingeborg again. Very pleasant and kindly client. Definitely recommended. Will be great to work a… I was glad to work with Ingeborg again. Very pleasant and kindly client. Definitely recommended. Will be great to work again in the future. Mar 2019 - Sep 2019 FIXED $75.00 Item Number instruction To freelancer: 5 Good communication Aug 2018 - Aug 2019 HOURLY $195.00 EXCEL EXPERT - urgent To freelancer: 5 Super work - very fast. To client: 5 Great client. I liked working with her and hope to have the opportunity to work with her again. Jul 2019 - Jul 2019 FIXED $20.00 Translation Danish - English Danish - Chinese To freelancer: 5 Job done professionally and fast! To client: 5 Quick task and reasonable payment. Dec 2018 - Dec 2018 1 hrs @ $22.50/hr Billed: $18.75 Slideshow - 9 slides - 10 min presentation. To freelancer: 5 Great work To client: 5 Nov 2018 - Nov 2018 FIXED $100.00 Powerpoint expert To freelancer: 5 Naseem has done a really great job. I can only give my best recommendations. To client: 5 Feb 2018 - Mar 2018 FIXED $500.00 Drawing of a house No feedback given To client: 5 It was pleasure to talk and work with. The task was always clearly stated. Will be happy to cooperate again. Highly … It was pleasure to talk and work with. The task was always clearly stated. Will be happy to cooperate again. Highly recommended. Nov 2017 - Mar 2018 FIXED $80.00 Photoshop expert To freelancer: 5 Super fast- done it perfectly. To client: 5 Good client - the clear task, professionalism and positive thinking! Mar 2018 - Mar 2018 FIXED $18.75 Excel - stuff (for catalogue) To freelancer: 5 Super job - thanks To client: 5 Nice and easy-going, pleasure to work with! Dec 2017 - Jan 2018 FIXED $200.00 More Match work To freelancer: 5 Perfect - and very good communication To client: 5 Very nicely cooperative! I'd love to work with her again. Nov 2017 - Dec 2017 FIXED $100.00 Excel Item Numbers - MATCH To freelancer: 5 Very happy for the work To client: 5 Really great to work with, fast and fluent Nov 2017 - Nov 2017 FIXED $20.00 Looking for a Word template EXPERT To freelancer: 5 I would like to work with Karen again. To client: 5 Great client! Aug 2017 - Aug 2017 FIXED $30.00 Video To freelancer: 5 Super to work with - thanks. To client: 5 Great client. Worked for him before. Would work again. Highly recommended. Jun 2017 - Jun 2017 FIXED $5.00 Can you SHORTEN a video for a Slideshow presentation ? To freelancer: 5 Perfect - and very fast. To client: 5 Great client. Pleasure to work with. Perfectly clear job description, fast communication. Would recommend. May 2017 - May 2017 FIXED $20.00 Power Point Slide - Professionel looking To freelancer: 5 Very happy. I would work with you again. To client: 5 Ingeborg is the best client I ever have! Great communication, clear tasks and she knows what she want! Highly recommend!… Ingeborg is the best client I ever have! Great communication, clear tasks and she knows what she want! Highly recommend!! May 2017 - May 2017 FIXED $80.00 CAD Design - for 3D printing To freelancer: 5 Fast and perfect job! To client: 4.85 Thanks! May 2017 - May 2017 HOURLY $70.00 Simple drawings of tools No feedback given To client: 5 This client made me my job more than easy Jan 2016 - Apr 2016 FIXED $50.00 View more (37) Engineering & Architecture, 3D Modeling & CAD Open project
C++ & C# Backend Engineer, Kernel Drivers and Windows Internals	15 - 25 USD / hr	1 day ago	Client Rank - Medium Payment method verified 1 open job no reviews Registered: Apr 17, 2024 Thailand 3
Location: Fully Remote # What You'll Do * Build Windows performance tooling across kernel + user mode: C++ drivers (WDK/WDF) where needed, plus C# / C++ services, libraries, and CLIs for orchestration and UX. * Develop & ship kernel drivers (KMDF/UMDF as appropriate): device interfaces, IOCTL design, safe memory handling, signing workflows, and clean install/update/uninstall behavior. * Own HLK / Hardware Center readiness: build test plans, run HLK suites, triage failures, fix root causes, and prepare packages/attestation submissions for release-quality drivers. * Profile & diagnose with ETW/xperf/WPA/PerfView, design experiments, and turn findings into code. * Parse ETL and other telemetry, automate analyses, and surface actionable signals (frame pacing, CPU/GPU wait, DPC/ISR, I/O stalls). * Interop across Win32/WMI/COM/PInvoke and driver comms: services, registry, scheduled tasks, policy-safe tuning, and robust user↔kernel communication boundaries. * Validate via reproducible A/B tests and real-world game sessions; write crisp tech notes and docs other devs can act on. * *Occasionally RE (WinDbg, IDA, Ghidra) to clarify behavior, confirm hypotheses, or unblock a driver issue—then get back to shipping. # Must-Haves 5+ years building and shipping Windows applications/services in C# and C++/C. * Practical experience with kernel driver development using the WDK (KMDF/WDF fundamentals), including IOCTLs, synchronization, and safe memory/lifetime management. * Familiarity with driver signing and distribution (test signing, release signing/attestation concepts) and production install/update practices. * Fluency with ETW/WPT: capturing and reading ETL, using WPA/xperf to explain "why it's slow" and "how we fix it". * Strong, safe Win32 API familiarity and practical interop (P/Invoke, COM, registry, services, job objects). * Ability to work autonomously, turn fuzzy goals into measurable improvements, and ship production-ready code fast. * Fluent spoken and written English; you can turn an investigation into a one-pager with graphs and a patch. # Nice-to-Haves * Hands-on HLK / Hardware Center experience: running suites, diagnosing failures, packaging, and submission workflows. * Comfort with kernel debugging and reverse engineering (WinDbg/IDA/WinDbg), driver verifier, crash dump analysis, and ETW stack interpretation. * Familiarity with performance and gaming telemetry (PresentMon/CapFrameX-style metrics). * Exposure to kernel concepts (IRQL, DPC/ISR, scheduler hints) and driver dev/WDK. * Experience building around anti-cheat/AV constraints, avoiding false positives while doing legitimate system tuning (minimizing hooks, staying compliant, avoiding fragile techniques). * Love for games, frame-time graphs, and squashing jitter out of a machine. # Why Hone? * Fully remote: Hone offers a fully remote work experience, allowing you to work from anywhere while staying connected with our diverse team. * Gaming Industry Impact: Your work will directly shape how thousands of gamers experience and improve their performance. * A fun and friendly work environment: We're a fun and friendly bunch, and we love gaming! You'll have the opportunity to get to know your team members through gaming sessions and build strong relationships. You don't know your teammate until you have killed them about 43 times, or achieved some winner-winner chicken dinners together! If you have ever spent a weekend chasing a rogue ISR in WPA or felt compelled to uncover the meaning of an undocumented registry flag, we want to talk. Help us make PCs faster and smarter for gamers everywhere. Apply now! Note: We only review candidates that tell us "Real Reply" to make sure you've actually read this job post. To qualify for this job, you will be asked to pass a C++ CLI coding test. Skills: C Programming, C# Programming, Software Architecture, C++ Programming, Assembly, Software Development, Binary Analysis, Backend Development, Reverse Engineering, Performance Tuning Hourly rate: 15 - 25 USD 1 day ago Websites, IT & Software, Sales & Marketing, C# Programming, Software Architecture, C++ Programming, Assembly, Software Development, Binary Analysis, Backend Development, Reverse Engineering, Performance Tuning Open project
Mechanical Engineer Needed for Injection-Molded PP Clip (Living Hinge + Tight Tolerances)	300 USD	1 day ago	Client Rank - Good Payment method verified $2 348 total spent 4 hires 3 jobs posted 100% hire rate, 1 open job 18.76 /hr avg hourly rate paid 4 hours paid 5.00 of 3 reviews Registered: Oct 2, 2020 United States Chatsworth 12:04 4
Project: Injection-Molded Polypropylene Clip (Living Hinge + Tight Tolerances) I am looking for an experienced mechanical engineer or product designer with a strong background in injection-molded plastic part design, specifically polypropylene (PP). This job is to create a small injection-molded clip with: • thin wall construction (approx. 1.4–1.6 mm) • a living hinge • a small snap-fit or latch mechanism • tight dimensional tolerances • no undercuts (simple 2-part mold) • design for compatibility with existing packaging equipment • proper draft angles for manufacturing • moldability and DFM considerations All required dimensions, design constraints, and the full CAD specification document will be provided after NDA is signed. This is not a rendering or animation project. This is real mechanical engineering for mass manufacturing. ⸻ Required Skills Please apply only if you have experience with: • Injection-molded part design • Polypropylene (PP) or PE plastic components • Living hinges and flexural hinge design • Snap-fit / latch mechanisms • Draft angles and parting line planning • DFM (design for manufacturing) • Preparing mold-ready CAD models • Thin-wall plastic components • Tolerance control for production • SolidWorks or Fusion 360 ⸻ Deliverables 1. STEP file (.stp) 2. IGES file (.igs) 3. Native CAD file (SolidWorks preferred, Fusion also accepted) 4. 2D engineering drawing including: • all critical dimensions • tolerances • wall thickness callouts • draft angles • material specification (PP) • hinge design details • recommended parting line and gate location ⸻ NDA This project requires a non-disclosure agreement before full details are shared. Upwork’s NDA or a simple 1-page NDA can be used. ⸻ Timeline • Expected timeline for initial design: 1–2 weeks • Revisions: few days • Total project duration: 2–3 weeks Fast communication and iteration is appreciated. ⸻ To apply, please answer these questions: 1. Have you designed polypropylene injection-molded parts before? 2. Have you designed a PP living hinge or similar flexural hinge? 3. Can you provide examples of mold-ready CAD (STEP/IGES) you’ve created? 4. Are you able to provide 2D drawings with tolerances? 5. What CAD software do you use (SolidWorks, Fusion, etc.)? 6. What is your estimated timeline to complete this project? Applicants who do not answer these questions will not be considered. Fixed budget: 300 USD 1 day ago Client's recent history (3 works) Feature Film Colorst - DaVinci Resolve To freelancer: 4.7 To client: 5 Will and Randy were wonderful to work with. I was so happy to do the color grade and graphic animations for Gerri Curls.… Will and Randy were wonderful to work with. I was so happy to do the color grade and graphic animations for Gerri Curls. Looking forward to the next project. Oct 2020 - Dec 2020 FIXED $1,517.00 New GC fixed price contract To freelancer: 5 To client: 5 Was a great experience working on his indie feature! Hope that we get the chance the work together again! Great communic… Was a great experience working on his indie feature! Hope that we get the chance the work together again! Great communication and deadlines were very reasonable. Dec 2020 - Dec 2020 FIXED $750.00 Davinici Resolve Colorist for Ultra Low Budget Feature To freelancer: 5 To client: 5 Will has been great! We adjust the contract to best meet the needs of the film. I'm excited to do the colorist work and … Will has been great! We adjust the contract to best meet the needs of the film. I'm excited to do the colorist work and titles/graphics. Oct 2020 - Oct 2020 4 hrs @ $18.75/hr Billed: $81.25 View more (1) Engineering & Architecture, Energy & Mechanical Engineering Open project
C++ & C# Backend Engineer, Windows Internals and Reverse Engineering	not specified	1 day ago	Client Rank - Medium Payment method verified Phone number verified 2 jobs posted 1 open job no reviews Industry: Tech & IT Company size: 10 Registered: Sep 15, 2025 Canada 11:04 3
Location: Fully Remote Type: Full‑Time # What You'll Do * Build low-latency Windows services, libraries, and CLIs in C# and/or C++ that apply safe, testable performance optimizations. * Profile & diagnose with ETW/xperf/WPA/PerfView, design experiments, and turn findings into code. * Parse ETL and other telemetry, automate analyses, and surface actionable signals (frame pacing, CPU/GPU wait, DPC/ISR, I/O stalls). * Interop across user-mode and system APIs (Win32, WMI/COM, P/Invoke) and manage services, registry, and scheduling policy safely. * Validate via reproducible A/B tests and real-world game sessions; write crisp tech notes and docs other devs can act on. * Occasionally RE (IDA/Ghidra/WinDbg) to clarify behavior or unblock an optimization—then go back to shipping. # Must-Haves * 5+ years building and shipping Windows applications/services in C# and C++/C. * Fluency with ETW/WPT: capturing and reading ETL, using WPA/xperf to explain "why it's slow" and "how we fix it". * Strong Win32 API familiarity and practical interop (P/Invoke, COM, registry, services, job objects). * Ability to work autonomously, turn fuzzy goals into measurable improvements, and ship production-ready code fast. * Fluent spoken and written English; you can turn an investigation into a one-pager with graphs and a patch. # Nice-to-Haves * Hands-on reverse engineering (IDA & WinDbg) to support investigations. * Exposure to kernel concepts (IRQL, DPC/ISR, scheduler hints) and driver dev/WDK. * Experience avoiding false positives with anti-cheat/AV while doing legit system tuning. * Love for games, frame-time graphs, and squashing jitter out of a machine. # Why Hone? * Fully remote: Hone offers a fully remote work experience, allowing you to work from anywhere while staying connected with our diverse team. * Gaming Industry Impact: Your work will directly shape how thousands of gamers experience and improve their performance. * A fun and friendly work environment: We're a fun and friendly bunch, and we love gaming! You'll have the opportunity to get to know your team members through gaming sessions and build strong relationships. You don't know your teammate until you have killed them about 43 times, or achieved some winner-winner chicken dinners together! If you have ever spent a weekend chasing a rogue ISR in WPA or felt compelled to uncover the meaning of an undocumented registry flag, we want to talk. Help us make PCs faster and smarter for gamers everywhere. Apply now! Note: We only review candidates that tell us "Real Reply" to make sure you've actually read this job post. Client's questions: Describe your recent experience with similar projects Include a link to your GitHub profile and/or website Budget: not specified 1 day ago Web, Mobile & Software Dev, Desktop Application Development Open project
Hire low-level Windows security research engineer	35 - 90 USD / hr	1 day ago	Client Rank - Medium Payment method verified Phone number verified $600 total spent 1 hires, 1 active 2 jobs posted 50% hire rate, 1 open job no reviews Registered: Aug 12, 2025 United States Corona 09:04 3
We need a software security research engineer with deep understanding of Windows internals and endpoint protection behavior. The goal is to improve the resilience of an existing Windows desktop application by: - Hardening the binary to prevent tampering, reverse debugging, and memory inspection - Implementing protection measures such as encryption, packing, or obfuscation for code and binary - Analyzing endpoint security detection behaviors in a controlled, ethical testing environment - Reducing antivirus false-positive flags and improving software classification accuracy - Researching Windows Defender and other endpoint security behavior to provide application hardening guidance - Delivering clear implementation plans and behavior analysis reports - Supporting iterative debugging, testing, and security improvements Technical requirements: ✔ Strong C/C++ or C++ expertise ✔ Reverse engineering or malware analysis experience for defensive/security research ✔ Familiarity with Windows runtime, WinAPI, kernel behavior, and security detection heuristics ✔ Experience with code obfuscation, encryption, packers, or binary protection tools ✔ Ability to mitigate antivirus false-positive issues ✔ Capability to provide testing reports and implementation strategy documentation ⚠ Important: This is an ethical software-hardening and false-positive mitigation research project, not for malware development or distribution. Deliverables expected: 1. Binary hardening implementation plan 2. Endpoint protection behavior research report 3. Antivirus false-positive mitigation strategy 4. Code or binary protection integration (obfuscation, packing, signing guidance if needed) 5. Documentation for security test environment & results 6. Iterative support for debugging and improvements Work type: Short-term consultation based on hourly engagement, with possible follow-up iterations. NDA required before sharing project files or binaries. Hourly rate: 35 - 90 USD 1 day ago Client's recent history (1 work) Jobs in progress (1) Build a High-Risk Payment Platform Aug 2025 - Present FIXED $600.00 View more (-4) IT & Networking, ERP/CRM Software Open project
Mobile Health Unit	500 USD	2 days ago	Client Rank - Risky Payment method not verified Phone number verified 1 open job India 20:34 1
Force Motor Monobus Requirements for layout and design: 1. Screening Room X 2 (5ft x 5ft) X 2 w/ A/C 2. Separate seating area(s) w/ A/C 3. Storage compartment 4. Technician's Desk (4ft x 2 1/2 ft) 5. Small TV or Screen exterior w/ canopy 6. Retractable stair for custom entry (?) 7. Heated flooring or perma-gel flooring 8. One cupboard for tools and accessories 9. A/C Generator for uninterrupted power Fixed budget: 500 USD 2 days ago Engineering & Architecture, 3D Modeling & CAD Open project
Front End WebFlow Developer	not specified	2 days ago	Client Rank - Risky Payment method not verified Phone number verified 1 open job United States 09:04 1
Front-End Webflow Developer — Confidential Fintech Build Contract Role \| High-Security, Compartmentalized Architecture About the Project A private client is developing a high-security fintech interface for a proprietary multi-tier risk-architecture system known internally as The Black Sheep Protocol. The system contains three structural tiers (Constitution-1, Constitution-2, and Constitution-3), which must be represented visually in the UI. You are responsible only for the front-end. All backend logic, algorithms, and mechanics remain completely isolated and are handled by a different team. This role requires strict compliance with confidentiality, modular construction, and compartmentalized design. Role Responsibilities The Webflow Front-End Developer will: Build all public-facing Webflow pages Build a gated client dashboard Implement visual indicators for the three Protocol tiers: Constitution-1 Constitution-2 Constitution-3 Implement a margin-awareness UI display Create clean, modular UI components for backend developers to integrate Ensure zero exposure of proprietary calculations or mechanics Use Webflow as the primary platform with optional lightweight custom code embeds This position is purely front-end. You will never be given backend formulas or internal logic. What You Will Build 1. Public Website (Webflow) Polished, luxury-grade landing pages High-end hero sections with subtle animations Non-technical, high-level content explaining that the system operates across three tiers Enrollment and informational pages Pricing overview (enrollment, access, performance tiers) Fully responsive, mobile-friendly layout Secure CMS structure 2. Client Dashboard (Front-End Only) A login-gated dashboard presenting: UI-only indicators for Constitution-1, Constitution-2, and Constitution-3 Structure status states Efficiency-tier selectors or displays High-level pathway visuals (non-mechanical) Lifecycle and progression timelines Front-end buttons for backend-triggered actions: Activate Pause Update / Transition Modular components ready for backend integration The dashboard shows visual states — not calculations. 3. Margin-Awareness UI Module The UI must clearly display: Available margin Margin utilization Status indicators: Healthy Approaching Threshold Extended Projected impact visuals (non-numeric, non-mechanical) The client does not make decisions. This is purely informational to prevent operational interruption. 4. Automation UI Shell (Front-End Only) Create the front-end interface that triggers backend processes: Activation Pausing Updating Backend logic is isolated and handled separately. Modular Architecture (Mandatory) All components must be: Modular Replaceable Exportable Segmented Detached from backend logic Built for secure integration Designed to prevent reverse engineering You will see only what is necessary for UI work. This protects trade secrets and ensures long-term scalability. Tech Stack Webflow (primary) HTML / CSS / JS for custom embeds Lottie animations Memberstack / Outseta / Webflow Memberships Figma (layout collaboration, if needed) Security Requirements (Mandatory) NDA + Non-Compete must be signed before receiving details No public posting of work, screenshots, or concepts No reuse of design patterns or architecture No GitHub or public repos All deliverables must use secure transfer channels Zero disclosure of Protocol structure or internal logic Confidentiality is absolute. Ideal Candidate Expert-level Webflow skills Strong UI/UX instincts Experience with dashboards or financial interfaces Able to work without backend visibility Understands modular, compartmentalized development Reliable, communicative, and deadline-accurate Deliverables Full Webflow front-end Public-facing website Gated client dashboard Three-tier UI structure (Constitution-1 / 2 / 3) Margin-awareness module Modular component architecture Front-end trigger controls Secure handoff-ready system How to Apply (Fixed Price Only — No Hourly Billing) Please provide: 1. Your total project price A single fixed cost for completing the entire front-end. 2. Your per-page breakdown List how many Webflow pages you expect to build (public + dashboard + UI modules). 3. Timeline How long the project will take. 4. Webflow portfolio Links to past Webflow work. 5. NDA confirmation You must confirm willingness to sign a strict NDA + Non-Compete. 6. Modular-development confirmation You must confirm you can build isolated components without backend access. Budget: not specified 2 days ago Web, Mobile & Software Dev, Web & Mobile Design Open project
MIPS32 LE Reverse Engineering Specialist Needed	400 USD	2 days ago	Client Rank - Excellent Payment method verified $21 822 total spent 12 hires, 5 active 15 jobs posted 80% hire rate, 1 open job 17.06 /hr avg hourly rate paid 466 hours paid 5.00 of 7 reviews Industry: Education Individual client Registered: Mar 6, 2023 United States Dallas 09:04 5
We are seeking an experienced professional for reverse engineering of a MIPS32 LE architecture we wish to achieve a few simple modifications. 1) change screen display order on the device 2) alter text on one screen Work flow will be: 1) I will give you the dump of files to work on 2) We will schedule a time I can be available during a long period of testing. 3) As you complete test candidates I will flash them and relay results until desired outcome is achieved Client's questions: What tools will you be using to accomplish this? Is there any information you need from me to better inform your comfort on this project? Describe your recent experience with similar projects Fixed budget: 400 USD 2 days ago Client's recent history (12 works) Jobs in progress (3) Create Technical Diagrams for Educational Material Oct 2025 - Present FIXED $150.00 Create Technical Diagrams for Educational Material Oct 2025 - Present FIXED $341.00 Interface to Connect a Third-Party Messaging Service to OpenAI and Manus Jun 2025 - Present FIXED $3,954.50 View more (-2) Main Dev for Jarvis No feedback given Mar 2023 457 hrs @ $17.83/hr Billed: $8,139.21 30 minute consultation To freelancer: 5 Great communication, prompt and knowledgeable. Sep 2025 - Sep 2025 FIXED $62.88 30 minute consultation To freelancer: 5 A true domain to expert. Kind, thoughtful, and thorough. Would absolutely trust my safety with this expert. To client: 5 This was my second consultation with Mai-Lis and another great experience. Mai-Lis had well thought out questions, made … This was my second consultation with Mai-Lis and another great experience. Mai-Lis had well thought out questions, made great use of our time together, and was professional to work with. Jun 2025 - Jun 2025 FIXED $102.04 Mobile Security Consultation for Adversarial Environments To freelancer: 5 To client: 5 May 2025 - Jun 2025 30 minute consultation To freelancer: 5 Consultant was very knowledgeable and helpful in his domain, we'll definitely be talking to him again. To client: 5 Mai-Lis provided the necessary documentation up front and clearly explained their challenge. I look forward to working w… Mai-Lis provided the necessary documentation up front and clearly explained their challenge. I look forward to working with them again. Jun 2025 - Jun 2025 30 minute consultation To freelancer: 5 Great consult: On time, very knowledgeable and gave great direction for project details and planning. To client: 5 Great client. The inputs for the consultation were explicit, and the communication - highly professional and friendly. … Great client. The inputs for the consultation were explicit, and the communication - highly professional and friendly. Don't hesitate to work with him. May 2025 - May 2025 FIXED $68.03 Incarcerated Life Expectancy Research Paper To freelancer: 5 Great, quality work. Very professional and knowledgeable. Would certainly hire again for professional research and wri… Great, quality work. Very professional and knowledgeable. Would certainly hire again for professional research and writing projects. To client: 5 Thanks and best wishes on future projects. May 2024 - Jul 2024 FIXED $550.00 Full Stack Wix Developer for Admin and Moderator Panel To freelancer: 5 To client: 5 Apr 2023 - May 2024 FIXED $3,300.00 Parser + Highlight Detection Enhancements No feedback given To client: 5 It was great experience working with her. Mar 2023 - Oct 2023 10 hrs @ $21.00/hr Billed: $210.00 View more (7) Web, Mobile & Software Dev, Other - Software Development Open project
Game Reverse Engineer (C++/C# Memory Tools Specialist)	250 USD	2 days ago	Client Rank - Medium Payment method verified $105 total spent 6 hires, 2 active 37 jobs posted 16% hire rate, 2 open job 20.18 /hr avg hourly rate paid 5.00 of 4 reviews Registered: Sep 14, 2021 Pakistan Lahore 20:04 3
We are seeking an experienced Game Reverse Engineer specializing in C++ and C# memory tools to join our team. The ideal candidate will have a strong background in reverse engineering, debugging, and modifying existing game code. Your expertise will be crucial in enhancing game functionalities and uncovering hidden features. If you possess a passion for gaming and a knack for problem-solving, we would love to hear from you. Please provide examples of your previous work in game reverse engineering. Fixed budget: 250 USD 2 days ago Client's recent history (3 works) Jobs in progress (1) SAP Business One Developer & Technical Writer Needed for Customization and Reporting Guide Dec 2024 - Present FIXED $10.00 View more (-4) Bootloader Development for MSP430 Microcontroller To freelancer: 5 Great working with Troung will definitely hire in future also. To client: 5 Great to work with Amjad Hope that to support him in the future Dec 2024 - Jan 2025 PLC hmi design and code. To freelancer: 5 It was great experience working with Masood he is indeed an expert in PLC programming works. This is start of new relati… It was great experience working with Masood he is indeed an expert in PLC programming works. This is start of new relationship with him and for many more projects. To client: 5 He is very polite and humble person. Exceptionally excellent payment. The correspondence was good. Exceptionally pleased… He is very polite and humble person. Exceptionally excellent payment. The correspondence was good. Exceptionally pleased. Sep 2023 - Sep 2023 FIXED $50.00 Web, Mobile & Software Dev, Desktop Application Development Open project
ELF Binary Learning / Debugging Help	70 USD	2 days ago	Client Rank - Medium Payment method verified $287 total spent 7 hires, 2 active 14 jobs posted 50% hire rate, 1 open job 4.23 of 3 reviews Registered: May 5, 2022 Austria Graz 16:04 3
I am working on a personal educational challenge involving reverse engineering of a Linux ELF binary that I legally own. The objective is to analyze the executable, understand its internal logic and control flow, and eventually extract an embedded challenge token (“flag”) that is intentionally placed inside the binary for learning purposes. Tools such as Ghidra, IDA, Binary Ninja, radare2, or GDB may be used — I want to follow the process step by step so I can reproduce the methodology afterward. This project is strictly educational and fully compliant with intellectual property rules — the binary is self-contained and not part of any commercial or proprietary software. The goal is to deepen my understanding of reverse engineering principles and analysis techniques. Fixed budget: 70 USD 2 days ago Client's recent history (6 works) Jobs in progress (1) Create simple GUI for Multibrot Set (JavaFX) Dec 2022 - Present FIXED $10.00 View more (-4) Creation of c++ examples No feedback given May 2022 FIXED $55.00 Multithreading in C (POSIX) No feedback given To client: 3 Oct 2023 - Sep 2025 FIXED $70.00 Dynamic memory allocation / Implementation dynamic memory to allocate/deallocate memory on the heap No feedback given Nov 2022 - Apr 2023 FIXED $40.00 implement mechanism that allow processes to communicate and share data (IPC) in C language To freelancer: 5 I had a great experience working with Valentin. He was very professional, easy to communicate with and always responded … I had a great experience working with Valentin. He was very professional, easy to communicate with and always responded quickly. I would recommend him highly! To client: 5 Amir is a nice, available and comprehensive person. I would be happy to work again with him Nov 2022 - Nov 2022 FIXED $50.00 Need someone to make Basic structure for the game in C++ (OOP) To freelancer: 5 This man is a genius, it was a pleasure to work with him and i recommend him to everyone ! To client: 5 It was pleasant to be a tutor for Amir. I appreciate his good communications skills and high frustration tolerance. May 2022 - May 2022 FIXED $62.00 View more (3) IT & Networking, Information Security & Compliance Open project
ELF Binary Learning / Debugging Help -- 2	~35 - 290 USD	2 days ago	Client Rank - Excellent Payment method verified $48 473 total spent 48 hires, 1 active 2 open job 4.75 of 18 reviews Registered: Aug 1, 2018 Austria 5
I am working on a personal educational project involving static and dynamic analysis of a compiled Linux ELF binary that I own. The goal is to better understand compilation, control flow, and debugging. You may use tools such as Ghidra, IDA, Binary Ninja, radare2, or GDB to walk me through the analysis process. What matters is that I can follow and understand the methodology afterward. Once I understand the process and the reasoning behind the analysis, the job is complete. Please feel free to inform me early on if you notice any unusual architecture or packing so we can adjust the tools accordingly. Skills: Binary Analysis, Penetration Testing, Security, Reverse Engineering Fixed budget: 30 - 250 EUR 2 days ago Websites, IT & Software, Engineering & Science, Binary Analysis, Penetration Testing, Security, Reverse Engineering Open project
ELF Binary Learning / Debugging Help	~35 - 290 USD	2 days ago	Client Rank - Excellent Payment method verified $48 473 total spent 48 hires, 1 active 2 open job 4.75 of 18 reviews Registered: Aug 1, 2018 Austria 5
I am working on a personal educational project involving static and dynamic analysis of a compiled Linux ELF binary that I own. The goal is to better understand compilation, control flow, and debugging. You may use tools such as Ghidra, IDA, Binary Ninja, radare2, or GDB to walk me through the analysis process. What matters is that I can follow and understand the methodology afterward. Once I understand the process and the reasoning behind the analysis, the job is complete. Please feel free to inform me early on if you notice any unusual architecture or packing so we can adjust the tools accordingly. Skills: C Programming, Linux, C++ Programming, Software Development, Binary Analysis, Penetration Testing, Security, Reverse Engineering Fixed budget: 30 - 250 EUR 2 days ago Websites, IT & Software, Engineering & Science, Sales & Marketing, Linux, C++ Programming, Software Development, Binary Analysis, Penetration Testing, Security, Reverse Engineering Open project
Reverse Engineer Industrial PCB into a Schematic	250 - 750 USD	3 days ago	Client Rank - Excellent Payment method verified $18 583 total spent 12 hires, 1 active 1 open job 5.00 of 10 reviews Registered: Nov 3, 2022 United Kingdom 5
I have a two-layer board taken from a vending machine, and I need the full schematic recreated by reverse engineering the PCB from photo's and (in extreme condition) send you a PCB. The Schematic can be in KiCad, Eagle, PDF or whatever you prefer. The PCB is apprximately 220mm x 150mm with most omponents on side 1, but 7 seg displays and LED's on side 2. I will supply high-resolution photos of both sides, measurements, and any markings that are still visible. I will also provide details of what the board does, and what all the connectors do. I will also provide additional photo's of the board with all the components removed to expose tracks under IC's. Your task is to trace every net, identify all components, and deliver a clean KiCad project that accurately reflects the original circuit. To make expectations crystal clear, I will consider the job complete when I receive the following: • A confirmed schematic file showing all nets, component references, values, and hierarchical sheets if required • A generated netlist that matches the physical board • BOM designatoris. Component values aren't important Time frame is approximately 2 weeks to complete in full. I will create a milestone for the full value of the project, but I will only release payment once the project is complete and verified. If this is unacceptable, please don't submit a proposal. Please preserve the existing reference designators where possible and flag any ambiguities so we can resolve them together before final delivery. Skills: Electronics, Electrical Engineering, PCB Layout, Circuit Design, Embedded Systems, Technical Documentation, Reverse Engineering Fixed budget: 250 - 750 USD 3 days ago Websites, IT & Software, Writing & Content, Engineering & Science, Electronics, Electrical Engineering, PCB Layout, Circuit Design, Embedded Systems, Technical Documentation, Reverse Engineering Open project
Clone Existing Android BLT App	30 - 250 USD	3 days ago	Client Rank - Medium Payment method verified 1 open job no reviews Registered: Mar 12, 2024 Poland 3
I want an exact, working replica of the Android app found here: https://play.google.com/store/apps/details?id=pl.com.dte.blt&hl=pl. Every screen, interaction and background process must behave identically; I chose to replicate all functionalities, and the look and feel should remain unchanged as well. Build it for the latest stable Android SDK, making sure it installs cleanly across recent devices. The finished product has to match the original performance, permissions, connectivity flow and UI elements pixel-for-pixel, with smooth transitions and no feature gaps. Deliverables should be straightforward: • a signed, install-ready APK • complete, well-organised source code that compiles in Android Studio without additional tweaking If you have experience cloning apps or reverse-engineering existing Play Store releases while keeping performance optimised and code clear, this job will be quick and direct. Skills: PHP, Java, Mobile App Development, Android, Mobile Development, Android App Development, Android SDK, Android Studio Fixed budget: 30 - 250 USD 3 days ago Websites, IT & Software, Mobile Phones & Computing, Design, Media & Architecture, Business, Accounting, Human Resources & Legal, Mobile Development, Mobile App Development, Android, Android App Development, Android Studio, Android SDK Open project
Android APK Reverse Engineering & Network Protocol Research (2-Player Chinese Card Game) - 01/12/2025 21:52 EST	250 - 750 USD	3 days ago	Client Rank - Medium Payment method verified 1 open job no reviews Registered: Sep 20, 2025 China 3
I have a private Chinese 2-player card game APK (Unity/Cocos2d-x, version similar to w-1.58-19). Original source code was lost. I need a skilled Android reverse engineer to: 1. Fully decompile the APK to a clean, readable, and buildable Android Studio project (Java/Kotlin + native code if any) 2. Analyze and fully document the network protocol (JSON packets, timestamps, HMAC-SHA256 signing with daily/rolling key) 3. Create a client-side proof-of-concept overlay / injectable module that demonstrates: - Real-time visibility of opponent’s complete hand (all 13-14 tiles + every new draw) - Full visibility of the remaining wall - Optional controlled draw selection with 1.5–2 second timeout fallback to random (purely for research) - Two separate on/off switches for the above features 4. Provide short video proof working in real online 2-player rooms + source code + setup guide This is strictly for personal educational and research purposes only. NDA required. Budget: $800 USD fixed price Milestones: - $200 – Start work & environment setup - $300 – Working demo video (all features shown) - $300 – Final delivery + source code Timeline: demo within 4 days, final within 8 days max Please only bid if you have previous experience with similar Chinese card-game APKs and can show relevant past work examples. APK and screenshots will be shared immediately after NDA and first milestone. Thank you! Skills: Java, Mobile App Development, Android, Unity 3D, Game Development, JSON, Kotlin, Software Documentation, Reverse Engineering, Unity Fixed budget: 250 - 750 USD 3 days ago Websites, IT & Software, Mobile Phones & Computing, Data Entry & Admin, Business, Accounting, Human Resources & Legal, Unity 3D, Game Development, JSON, Software Documentation, Mobile App Development, Android, Kotlin, Reverse Engineering, Unity Open project
AppSheet System Analyst Needed to Create Technical Blueprint for Custom Rebuild	not specified	3 days ago	Client Rank - Risky Payment method not verified Phone number verified 1 jobs posted 2 open job no reviews Registered: Nov 30, 2025 Australia 01:34 1
We have a large operational system built in AppSheet + Google Sheets. We now want to rebuild it as a fully custom-coded platform. Before that, we need a system analyst or solution architect to log into our AppSheet apps, analyse everything, and produce a full technical blueprint that our development team can use. This is a one-time documentation job. No coding required. You are NOT rebuilding the system — only documenting it. ⸻ Your Tasks • Review our AppSheet apps and Google Sheets backend • Analyse tables, references, slices, workflows, automations, and logic • Document all business rules and processes • Produce a technical blueprint for a future custom system ⸻ Deliverables • ERD (tables and relationships) • Data dictionary • Workflow documentation • Automation summary • Logic and formulas overview • Role/permission mapping • High-level architecture recommendation • Full technical specification document ⸻ Who We Need • Experience reverse-engineering no-code platforms (AppSheet, Bubble, Airtable, Zoho Creator, PowerApps) • Strong system analysis and documentation skills • Understanding of relational databases • Able to deliver clear, structured technical specs for developers ⸻ What to Include in Your Proposal • Examples of similar documentation work • Your experience with AppSheet or similar tools • Estimated timeline • Fixed-price quote preferred ⸻ If this goes well, you may assist later with quality review, but the main job is documentation only. Budget: not specified 3 days ago Web, Mobile & Software Dev, Web Development Open project
Map	not specified	3 days ago	Client Rank - Risky Payment method not verified Phone number verified 1 open job no reviews Registered: Jul 8, 2025 France 16:04 1
Hi, I'm reaching out because I'm looking for an experienced C++ reverse engineer to work on a Linux MMORPG server project, and your profile suggests you have the right expertise. Project Context: I operate a private MMORPG server running on Linux. The server is a compiled binary without access to source code, but I've already successfully implemented a working .so injection layer using LD_PRELOAD and have multiple runtime hooks in place that are functioning correctly. The Challenge: The server has a hardcoded limitation that restricts it to loading only 255 maps simultaneously at startup. These maps are defined in a myzone.cfg file and stored as /map/ID.xmp files. Interestingly, the server architecture includes both a MapID system (currently limited to the 255 active maps) and an unused 16-bit ZoneID system that supports identifiers from 0 to 65535. This suggests the infrastructure for handling more maps was designed but never fully implemented or activated. From my analysis, the client protocol appears to already support 16-bit identifiers, so this should purely be a server-side limitation. What I Need: The goal is to remove the 255-map simultaneous loading restriction through reverse engineering and runtime modification, specifically: Reverse engineer the server binary using tools like Ghidra, IDA Pro, or Cutter to identify map creation and lookup logic Hook the relevant functions (Create(), MoveClient_ToZone(), zone/indexing operations, etc.) Redirect the fixed internal containers to extended structures allocated in the injected .so Preserve the original binary layout without direct patching of static memory buffers Maintain full client compatibility and protocol stability Technical Requirements: This must be accomplished entirely through runtime hooking - no modifications to the original binary file itself. The solution needs to be stable, maintainable, and follow clean engineering practices. Deliverables: I'm looking for a technical mapping phase followed by a proof-of-concept implementation as the initial delivery. The work should be well-documented so I can understand and maintain it going forward. Your Qualifications: This project requires someone with solid experience in: Advanced C++ programming Linux ELF binary reverse engineering Runtime hooking and function interception techniques LD_PRELOAD and .so injection Tools like Ghidra, IDA Pro, or equivalent Experience with network protocol analysis or MMORPG server architecture would be a bonus but isn't strictly required. Next Steps: If this sounds like something within your skillset and you're interested, I'd be happy to discuss the project in more detail, share additional technical information, and talk about timeline and compensation. Looking forward to hearing from you. Thanks. Budget: not specified 3 days ago Web, Mobile & Software Dev, Desktop Application Development Open project
Android APK Reverse Engineering & Network Protocol Research (2-Player Chinese Card Game)	250 - 750 USD	3 days ago	Client Rank - Medium Payment method verified 1 open job no reviews Registered: Sep 20, 2025 China 3
I have a private Chinese 2-player card game APK (Unity/Cocos2d-x, version similar to w-1.58-19). Original source code was lost. I need a skilled Android reverse engineer to: 1. Fully decompile the APK to a clean, readable, and buildable Android Studio project (Java/Kotlin + native code if any) 2. Analyze and fully document the network protocol (JSON packets, timestamps, HMAC-SHA256 signing with daily/rolling key) 3. Create a client-side proof-of-concept overlay / injectable module that demonstrates: - Real-time visibility of opponent’s complete hand (all 13-14 tiles + every new draw) - Full visibility of the remaining wall - Optional controlled draw selection with 1.5–2 second timeout fallback to random (purely for research) - Two separate on/off switches for the above features 4. Provide short video proof working in real online 2-player rooms + source code + setup guide This is strictly for personal educational and research purposes only. NDA required. Budget: $800 USD fixed price Milestones: - $200 – Start work & environment setup - $300 – Working demo video (all features shown) - $300 – Final delivery + source code Timeline: demo within 4 days, final within 8 days max Please only bid if you have previous experience with similar Chinese card-game APKs and can show relevant past work examples. APK and screenshots will be shared immediately after NDA and first milestone. Thank you! Skills: Java, Mobile App Development, Android, Unity 3D, JSON, Kotlin, Mobile Development, Reverse Engineering, Android Studio, Unity Fixed budget: 250 - 750 USD 3 days ago Websites, IT & Software, Mobile Phones & Computing, Business, Accounting, Human Resources & Legal, Unity 3D, JSON, Mobile Development, Mobile App Development, Android, Kotlin, Reverse Engineering, Android Studio, Unity Open project

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