Discover Projects with 'Firebase' Expertise

Title: Mobile App QA Testing – Manual & Automation Testing for Android and iOS
I am looking for an experienced Mobile QA Engineer or QA Testing Team to perform comprehensive manual and automated testing for my mobile application on both Android and iOS platforms.
Scope of Work:
Manual Testing: Functional testing, UI/UX testing, regression testing, exploratory testing, and end-to-end user flow validation.
Automation Testing: Develop and execute automated test scripts for critical user journeys, regression tests, and repetitive test cases.
Real Device Testing: Test the application on physical Android and iOS devices to identify device-specific issues.
Cloud Device Testing: Use cloud testing platforms such as BrowserStack, Firebase Test Lab, AWS Device Farm, or similar services to cover multiple devices, OS versions, and screen sizes.
Android & iOS Coverage: Verify functionality, compatibility, performance, and UI consistency across both platforms.
Bug Reporting: Provide detailed bug reports with reproducible steps, screenshots or screen recordings, severity levels, and expected versus actual results.
Test Documentation: Prepare test cases, test scenarios, test execution reports, and automation test results.
Regression Testing: Verify that reported issues are fixed and ensure existing features continue to work correctly.
Required Skills:
Proven experience in mobile application QA testing for Android and iOS.
Hands-on experience with manual testing and mobile automation frameworks such as Appium, Maestro, or similar tools.
Experience testing on real devices and cloud-based device farms.
Familiarity with CI/CD integration for automated test execution is a plus.
Strong analytical skills and clear communication.
Expected Deliverables:
A comprehensive test plan and test cases.
Manual testing execution report for Android and iOS.
Automated test scripts with setup and execution instructions.
Real-device and cloud-device compatibility test results.
A detailed bug report with evidence.
A final QA summary highlighting test coverage, critical issues, and recommendations.
When Applying, Please Include:
Your experience with Android and iOS app testing.
The automation frameworks and tools you recommend.
Your approach to real-device and cloud-device testing.
Examples of similar mobile QA projects you have completed.
Your estimated timeline and budget.
I am looking for someone who can provide reliable, thorough testing and help ensure the application is stable, functional, and ready for production. Please clearly specify whether you can handle both manual and automation testing across Android and iOS.

Skills: Mobile App Development, Android, Testing / QA, Software Testing, Test Automation, Mobile App Testing, Regression Testing, iOS

Title: Mobile App QA Testing – Manual & Automation Testing for Android and iOS
I am looking for an experienced Mobile QA Engineer or QA Testing Team to perform comprehensive manual and automated testing for my mobile application on both Android and iOS platforms.
Scope of Work:
Manual Testing: Functional testing, UI/UX testing, regression testing, exploratory testing, and end-to-end user flow validation.
Automation Testing: Develop and execute automated test scripts for critical user journeys, regression tests, and repetitive test cases.
Real Device Testing: Test the application on physical Android and iOS devices to identify device-specific issues.
Cloud Device Testing: Use cloud testing platforms such as BrowserStack, Firebase Test Lab, AWS Device Farm, or similar services to cover multiple devices, OS versions, and screen sizes.
Android & iOS Coverage: Verify functionality, compatibility, performance, and UI consistency across both platforms.
Bug Reporting: Provide detailed bug reports with reproducible steps, screenshots or screen recordings, severity levels, and expected versus actual results.
Test Documentation: Prepare test cases, test scenarios, test execution reports, and automation test results.
Regression Testing: Verify that reported issues are fixed and ensure existing features continue to work correctly.
Required Skills:
Proven experience in mobile application QA testing for Android and iOS.
Hands-on experience with manual testing and mobile automation frameworks such as Appium, Maestro, or similar tools.
Experience testing on real devices and cloud-based device farms.
Familiarity with CI/CD integration for automated test execution is a plus.
Strong analytical skills and clear communication.
Expected Deliverables:
A comprehensive test plan and test cases.
Manual testing execution report for Android and iOS.
Automated test scripts with setup and execution instructions.
Real-device and cloud-device compatibility test results.
A detailed bug report with evidence.
A final QA summary highlighting test coverage, critical issues, and recommendations.
When Applying, Please Include:
Your experience with Android and iOS app testing.
The automation frameworks and tools you recommend.
Your approach to real-device and cloud-device testing.
Examples of similar mobile QA projects you have completed.
Your estimated timeline and budget.
I am looking for someone who can provide reliable, thorough testing and help ensure the application is stable, functional, and ready for production. Please clearly specify whether you can handle both manual and automation testing across Android and iOS.

Skills: Mobile App Development, Android, Testing / QA, Software Testing, Test Automation, Mobile App Testing, Regression Testing, iOS

I’m building a social-media style chat app focused on private, one-to-one conversations. At the heart of the product are fast, reliable text messages plus secure photo and video sharing between users.

Beyond those essentials, I’m aiming for a clean mobile UI (iOS and Android), robust user authentication, message status indicators, push notifications, and the basic profile screens you’d expect in a modern chat experience. Voice or video calling is not required right now, but I’d like the architecture to leave room for it later.

You’re free to propose the stack—Flutter or React Native on the front end and something like Firebase, Supabase, or a Node/Express API with real-time sockets on the back are all welcome options—as long as it delivers low-latency messaging and secure media storage.

Deliverables
• Full source code with clear project structure
• Deployed backend and database (cloud or self-hosted, your recommendation)
• Step-by-step setup / deployment notes
• Brief admin or analytics view to monitor users and chats

Please outline your proposed tech stack, any past chat projects, and an estimated timeline so we can get started quickly.

Skills: Mobile App Development, iPhone, Android, C# Programming, Node.js, React Native, Flutter, Supabase

मुझे एक एण्ड्रॉइड-आधारित लर्निंग ऐप विकसित करवानी है, जिसका पूरा फोकस प्रतियोगी परीक्षा की तैयारी करने वाले बीएससी नर्सिंग के विद्यार्थियों पर होगा। ऐप के भीतर मैं हर विषय के लिए आसान भाषा में नोट्स और हाई-क्वालिटी वीडियो क्लासेज उपलब्ध कराना चाहता/चाहती हूँ, ताकि छात्र कहीं भी, कभी भी तैयारी कर सकें।

मुख्य कार्य-दायरा
• यूज़र-फ्रेंडली इंटरफेस: रजिस्ट्रेशन, डैशबोर्ड, प्रोग्रेस-ट्रैकर और सर्च फंक्शन।
• कंटेंट मैनेजमेंट: विषयवार PDF नोट्स, वीडियो अपलोड व स्ट्रीमिंग, डाउनलोड पर नियंत्रण।
• कैटेगरी फ़िल्टर: अनाटॉमी, फिज़ियोलॉजी, नर्सिंग फाउंडेशन आदि को अलग-अलग टैब में दिखाना।
• नोटिफ़िकेशन व रिमाइंडर: नए लेक्चर, अपडेट या लाइव सेशन की सूचना तुरंत भेजना।
• बुनियादी ऐनालिटिक्स: छात्रों की प्रगति और सबसे ज़्यादा देखे गए लेक्चर की झलक।
• एडमिन पैनल: कंटेंट जोड़ने, हटाने और रिपोर्ट देखने के लिए वेब-बेस्ड कंसोल।

तकनीकी प्राथमिकताएँ
• Android Studio / Kotlin या Flutter जैसी आधुनिक स्टैक।
• Firebase अथवा समान बैक-एंड सेवा से authentication, real-time DB और cloud storage एकीकृत।
• वीडियो के लिए adaptive bitrate streaming (HLS) का सपोर्ट।

डिलिवरेबल्स
1. पूरी तरह काम करने वाला APK व सोर्स-कोड।
2. एडमिन वेब-पैनल की सोर्स-फाइलें।
3. इंस्टॉलेशन व मेंटेनेंस गाइड।
4. न्यूनतम एक महीने का तकनीकी सपोर्ट (बेसिक बग-फिक्स व सेट-अप सहायता)।

यदि भविष्य में MCQ मॉक-टेस्ट या पिछले वर्ष के प्रश्नपत्र भी जोड़ने की आवश्यकता हो, तो कोडबेस को मॉड्यूलर रखें ताकि उन्हें आसानी से एक्‍सटेंड किया जा सके। प्रोजेक्ट टाइमलाइन और चरणवार भुगतान प्रस्ताव के साथ अपनी अप्रोच साझा करें।

Skills: Mobile App Development, Android App Development, Content Management System (CMS)

Google Play Closed Testing - 12+ Real Android Testers / 14 Days
Budget: $20 USD - Fixed Price
We are looking for an experienced freelancer or small testing team to organize and complete a 14-day Google Play closed test for an Android peer-to-peer rental marketplace application.
This is a functional QA testing project, not just a tester enrollment service.
We need genuine Android users who will install the app, execute assigned test scenarios, report issues, and provide honest usability feedback.
The project covers one existing Android test build. No app updates, additional testing cycles, or retesting of future builds are required.
1. Tester Requirements
The contractor must provide:
• At least 12 distinct real testers using physical Android devices.
• Preferably 15+ testers to reduce dropout risks.
• Different Android device models and OS versions where possible.
• Testers capable of following written English instructions.
• Testers willing to perform assigned scenarios and provide genuine feedback.
Each tester must individually opt in through Google Play, install the official test build, and remain opted in for 14 consecutive days.
The contractor is responsible for coordinating participation and promptly reporting enrollment problems or dropouts.
2. Enrollment Process
Within 24 hours after contract acceptance, the contractor must provide:
• A Google Group email address or eligible tester enrollment email list.
• The number of available testers and their countries.
• An initial tester roster with unique tester IDs, device models, Android versions, and assigned roles.
We will configure the Google Play closed-testing track, add the testers, and provide the official opt-in link.
Within 48 hours after the official testing link becomes available, the contractor must coordinate at least 12 individual opt-ins and app installations.
The contractor must maintain a tester-by-tester activation record containing:
• Unique tester ID.
• Opt-in date.
• Installation confirmation.
• Device model and Android version.
• Testing activity dates.
The client will independently verify Google Play closed-testing eligibility through Play Console. Google Group membership alone does not constitute individual opt-in.
Each qualifying tester must remain opted in for at least 14 consecutive days. The qualifying period starts from that tester's actual individual opt-in date, not from the contract start date or the date the Google Group was added.
The 14-day continuous opt-in requirement does not mean every tester must use the application daily. However, testers must genuinely execute their assigned scenarios, document their activity, and provide authentic feedback.
The contractor must promptly report any dropouts or enrollment problems. Replacement testers must complete their own full 14-day qualifying period.
Final delivery may occur only after at least 12 distinct testers have individually completed their full 14-day continuous opt-in period, with the required functional testing and reporting deliverables completed.
3. Functional Testing
We have prepared a structured English Excel QA workbook containing 46 test scenarios.
The workbook includes:
• Test scenarios and expected results.
• Mandatory CORE/P0 scenarios and optional checks.
• Assigned tester IDs and user roles.
• Test execution and bug-reporting fields.
• Tester activity and feedback sections.
• Final testing summary.
Testing covers:
• Authentication and account workflows.
• Marketplace browsing and navigation.
• User roles and permissions.
• Item and package listings.
• Rental requests, confirmations, cancellations, pickup, and return.
• Paired rental workflows involving two separate user accounts.
• Chat, calendar, and other available functionality.
• Basic stability, usability, and error handling.
Some scenarios require two testers using separate accounts with different roles. The contractor must coordinate these interactions.
The client will provide any required test-account setup instructions. The contractor will coordinate tester registration and role assignment according to the supplied QA workbook. No real transactions or personal addresses are required.
All assigned CORE/P0 scenarios must be attempted and documented.
Optional scenarios are best effort.
Each scenario must have an accurate result: PASS, FAIL, BLOCKED, NOT RUN, or NOT APPLICABLE.
A scenario may only be marked PASS when the expected behavior was actually observed. BLOCKED, NOT RUN, and NOT APPLICABLE results must include explanations.
The detailed Excel workbook will be shared with shortlisted candidates before hiring, allowing them to review the complete scope and confirm their fixed-price offer.
4. Testing Activity and Feedback
Testers must genuinely interact with the application during the testing period.
The contractor must record:
• Tester ID and device information.
• Individual opt-in and installation confirmations.
• Actual testing activity dates.
• Scenarios executed and their results.
• Individual usability feedback.
• Problems encountered and recommendations.
Feedback must reflect real user experience.
Copied, fabricated, or automatically generated testing results are not acceptable.
No minimum number of bugs or positive reviews is required.
5. Bug Reporting
For each discovered issue, the contractor must document:
• Scenario ID and tester ID.
• Device model and Android version.
• Application build/version.
• Steps to reproduce.
• Expected behavior.
• Actual behavior.
• Severity and reproducibility.
• Screenshot or screen recording where relevant.
All findings must be recorded in the provided Excel workbook.
Important: Testing is limited to the existing app build. The contractor is not responsible for fixing bugs, verifying fixes, testing updated builds, or performing additional testing cycles.
The client may review and address reported issues independently. Bug fixing and testing of updated builds are outside the contractor's scope.
6. Reporting Schedule
Checkpoint 1 - Enrollment
Within 24 hours after contract acceptance:
• Google Group or tester enrollment list.
• Tester count and countries.
• Initial tester/device roster.
Checkpoint 2 - Activation
Within 48 hours after the official testing link becomes available:
• Confirmation of at least 12 individual opt-ins and installations.
• Updated tester roster.
• Notification of any access problems.
Checkpoint 3 - Day 7 Progress Update
Approximately seven days after testing begins, provide a brief Upwork message covering:
• Current enrolled tester count.
• Testing progress.
• Bugs or blockers discovered.
• Any participation issues.
No separate interim report or Excel submission is required.
Checkpoint 4 - Final Delivery
After the required 14-day enrollment period:
• Completed Excel QA workbook.
• Results for all assigned mandatory CORE/P0 scenarios.
• Individual tester feedback.
• Bug reports and supporting evidence.
• Testing activity records.
• Concise final testing summary.
No additional test cycles or retesting of fixes are required.
7. Acceptance Criteria
The fixed-price project will be considered complete when:
1. At least 12 genuine testers have maintained 14 consecutive days of Google Play opt-in, verified through our Play Console.
2. All assigned CORE/P0 scenarios have documented genuine outcomes, including explanations for blocked or incomplete tests.
3. Individual testing activity and authentic feedback are recorded.
4. Discovered bugs are documented with reproducible steps and supporting evidence where applicable.
5. The completed Excel workbook and final testing summary are delivered.
Mandatory CORE/P0 scenarios must be executed wherever technically possible. Any BLOCKED or NOT RUN result must include a specific, verifiable reason. Unattempted mandatory scenarios without a valid blocker do not satisfy the acceptance criteria.
Providing a Google Group, enrolling accounts, or simply waiting 14 days without performing the agreed functional testing is not sufficient for acceptance.
Google Play production approval is not part of the contractor's deliverables and is not a condition for payment.
8. Project Boundaries
• Total budget: $20 USD fixed price.
• One existing Android test build only.
• No development or bug fixing.
• No testing of updated builds.
• No retesting or additional QA cycles.
• No source code, Firebase, or Google Play Console access.
• No real payments or personal addresses required for testing.
• We manage the Play Console configuration, app availability, and enrollment.
• All project communication, deliverables, and payments must remain on Upwork.
• Google Play production approval cannot be guaranteed.
9. Please Answer These Questions
1. How many distinct real Android testers can you provide, and in which countries?
2. Can you provide a Google Group or tester enrollment list within 24 hours after hiring?
3. How will you coordinate functional testing, including scenarios requiring two separate user accounts?
4. Are you comfortable following a client-provided QA plan and recording actual results in Excel? The detailed workbook will be shared before hiring.
5. Can you provide a brief Day 7 progress update and a complete final testing report?
6. Can you complete the entire agreed scope for $20 USD fixed price?
Please mention any previous experience with Google Play closed testing.
We are ready to start once we select a suitable testing team.

I run a horse-tipping service and I’m ready to turn it into a fully-fledged mobile experience. What I need first is a native-feeling app that works on both iPhone and Android. New and existing followers will create a password-protected account, choose between a monthly or yearly plan, and then unlock my weekly picks.

Inside the app they should see the current week’s selections in a clean, easy-to-scan screen, while at the same time receiving the same picks automatically by email. I’d like the email side handled through a simple list manager (Firebase, Mailchimp, or similar) so I can also push out a short newsletter every week.

Core workflow
• Secure sign-up / log-in
• In-app purchase or Stripe subscription flow with monthly or yearly option
• Admin panel where I paste each week’s tips once and they publish to both the app and an email blast
• Basic analytics so I can track active users and churn
• Social buttons that open my Instagram and Facebook pages and encourage sharing
• Store-ready builds for the App Store and Google Play

A clear, annotated hand-off is important to me because I’m new to the app world; please factor in some screen-share walkthroughs or concise documentation so I can manage simple updates myself later on.

If you’re comfortable with cross-platform stacks like Flutter or React Native, payment gateways, and email integrations, I’d love to hear how you’d tackle this and what timeline you envision.

Skills: PHP, Mobile App Development, iPhone, Android, iOS Development, Payment Gateway Integration, React Native, Flutter

We are looking for a highly experienced Mobile App Developer and AI Engineer for a part-time, ongoing engagement to work on complex applications across multiple industries, including SaaS, fintech, healthcare, fitness, e-commerce, marketplaces, social networking, IoT, and AI-powered products.

This role requires strong technical expertise, problem-solving skills, excellent communication, and the ability to take ownership of complex projects from planning to production.

Required Skills

Cross-platform: Flutter, Dart, React Native, TypeScript
Native Android: Kotlin, Android SDK
Native iOS: Swift, SwiftUI, UIKit
AI Development: OpenAI APIs, LLMs, AI agents, chatbots, AI integrations
Backend & Integrations: REST APIs, Firebase, Supabase, databases, WebSockets
Engineering: GitHub, testing, debugging, CI/CD, App Store and Play Store deployment

Requirements

5+ years of professional mobile development experience.
Proven experience building and launching complex mobile applications.
Strong understanding of mobile architecture, performance, security, and API integrations.
Practical experience integrating AI features into real-world applications.
Excellent communication, independent problem-solving, and project ownership.
Ability to adapt to different industries, technologies, and project requirements.

Work Arrangement & Budget

This is a part-time, long-term engagement on a fixed weekly retainer basis, with ongoing opportunities to contribute to projects across multiple industries.

The budget displayed on this job post is for demonstration purposes only and is not the actual budget. Please propose your own realistic fixed weekly retainer based on your expertise and availability.

Clearly mention your proposed weekly budget, the number of hours you can commit per week, and your availability.

How to Apply

Generic AI-generated or copy-paste proposals will be ignored directly. We are looking for genuine professionals who can demonstrate their experience, technical depth, and problem-solving approach.

Please include the following in your proposal:

Your updated CV or resume.

Portfolio and links to mobile applications you have developed.
GitHub profile or relevant code samples.
Your experience with the technologies listed above, including your proficiency in each.
Two complex projects you have worked on, explaining your role, challenges, and solutions.
Your technical approach to handling complex mobile and AI development projects.
Your proposed fixed weekly retainer, weekly hours, and availability.

We are looking for a reliable, experienced professional for a long-term collaboration. If you have the technical expertise, communication skills, and ownership mindset to deliver high-quality applications, we would like to hear from you.

About the project
I'm building [Product Name], a web-based replacement for restaurant pagers. A customer scans a QR code, their phone is linked to their order number, and when the order is ready, staff tap a button and the customer's phone gets an alert. There's no app download and no account. It's a progressive web app (PWA) for cafés, restaurants, clinics, and other businesses that call customers.

What I need built (MVP)

1. Customer PWA (mobile-first, opens from a QR code)
• Links the browser session to an order or ticket number
• Shows live status ("Preparing" → "Ready")
• Alerts when ready: web push where supported, plus loud sound, vibration, and a full-screen visual alert while the page is open
• Handles iOS limitations (Add to Home Screen prompt, fallback alerts)
• Works reliably on weak or unstable Wi-Fi
2. Staff dashboard (tablet and desktop web)
• Create orders and show the QR code for each customer
• One-tap "Send call" button, plus resend and cancel
• Simple list of active and completed orders
3. Business admin
• Multi-tenant setup (each business has its own QR, branding, and data)
• Custom logo, colors, and notification message
• Stripe subscription billing (annual plans)
4. Basic analytics: average wait time, peak times, and orders completed vs. cancelled

Privacy requirement: The core product collects no personal customer information (no name, phone, or email). Please design with data minimization in mind.

Required skills

• Strong experience with React or Next.js and Node.js (or a comparable stack)
• Shipped PWAs with service workers and web push (including iOS Safari behavior)
• Real-time features (WebSockets, Firebase, Supabase, Ably, or similar)
• Stripe subscriptions
• Postgres or a comparable database; secure multi-tenant architecture
• Clean, documented code and Git workflow

Nice to have

• POS integration experience (Square, Toast, Clover)
• Twilio SMS fallback (optional feature, planned for later)
• Experience with restaurant or hospitality tech
• Arabic/English or other multilingual (RTL) support

Deliverables

• Working MVP deployed to a staging and production environment
• Full source code in my GitHub repository, with all IP transferred to me
• Short setup documentation and a handoff session

To apply, please include:

1. Links to 1–2 PWAs or real-time apps you've built
2. How you would deliver alerts on iPhones, where web push needs Home Screen install
3. Your proposed stack and a rough milestone plan
4. Your availability and estimated timeline

Start your proposal with the word "Pager" so I know you read this post.

We are Young Flame For All Nations, a youth ministry based in Sydney, Australia, serving Africa, Asia, and South America. We need a simple, beautiful, offline-friendly mobile app for iOS and Android. The app should be easy to use, visually appealing, and designed for a global audience. We are looking for a developer who can create a reliable, user-friendly experience that works well in low-connectivity environments.

I’m creating a mobile-first platform that helps people discover, create, and join real-world or virtual communities and events. Users should be able to register quickly, browse interest-based groups, host or RSVP to events, and receive tailored recommendations. A clean web version will mirror the core experience to widen reach.

I need a small but capable team that can guide the product from UX wireframes through production release. The scope covers:

• Product discovery and clear MVP definition
• UI/UX design for iOS, Android, and responsive web
• Cross-platform front-end (React Native or Flutter preferred)
• Secure back-end with scalable real-time data (Node.js, Firebase, or similar)
• Core features: profile management, group & event creation, search/filtering, RSVP/attendance tracking, push notifications, basic analytics, and an admin dashboard
• End-to-end testing, deployment, and a short knowledge-transfer session

Acceptance criteria:
1. A working MVP published to App Store, Google Play, and a live web domain.
2. Smooth sign-up flow (social login included) completing in under 30 seconds on 4G.
3. Creation, discovery, and joining of events validated in usability tests with 90 % task-completion rate.
4. Server response times below 300 ms for core endpoints under projected launch load.

If your team can cover design, development, QA, and initial launch support, let’s schedule an intro call and outline milestones.

Skills: JavaScript, Mobile App Development, iPhone, Node.js, Web Development, Backend Development, React Native, Flutter

Freelance Fintech Growth Marketer | Pre-Launch & App Launch

About Us

We're a US-based fintech startup preparing to launch a mobile app that makes physical gold ownership more accessible through fractional purchases.

We're looking for a hands-on, commercially minded growth marketer to help us build momentum before launch, grow a qualified waitlist and convert early interest into active app users.

We're a lean startup, so we need someone who can execute, test, measure and optimise, not just develop strategies.

The Role

We're looking for an experienced Fintech Growth Marketer to lead our pre-launch customer acquisition efforts and support our initial go-to-market strategy.

Your immediate priority will be building a qualified US waitlist. Following launch, your focus will shift to app installs, onboarding, activation and customer acquisition.

You'll work closely with our marketing lead, product and design teams.

Key Responsibilities

Pre-Launch Growth & Waitlist Acquisition
- Develop and execute a practical pre-launch growth strategy targeting US consumers.
- Drive qualified waitlist registrations through paid and organic channels.
- Plan, launch and optimise campaigns across Meta, Google and other relevant platforms.
- Test audiences, messaging, creatives and landing page variations.
- Explore partnerships, referral programmes and community-led acquisition.
- Monitor cost per lead, conversion rates and waitlist quality.
- Develop a strategy to convert waitlist subscribers into active users at launch.

Bonus but not a must: Paid Media & Performance Marketing
- Set up and manage Meta Ads and Google Ads campaigns.
- Build and test audience segments and retargeting strategies.
- Manage budgets and optimise acquisition performance.
- Coordinate creative assets with our design team.
- Implement conversion tracking, attribution and performance reporting.
- Identify and scale the most effective acquisition channels.

App Launch & Customer Acquisition
- Develop and execute launch campaigns.
- Support App Store Optimisation (ASO).
- Manage mobile app acquisition campaigns.
- Optimise the customer journey from ad click to registration, verification and first purchase.
- Identify opportunities to improve activation, retention and referrals.

Analytics & Marketing Automation
- Work with Customer.io, Amplitude and other analytics platforms.
- Set up campaign tracking and attribution.
- Build simple weekly performance dashboards.
- Analyse customer behaviour and recommend improvements.
- Collaborate with product and development teams to improve conversion.

Messaging & Creative Testing
- Test compelling value propositions for fractional gold ownership.
- Develop clear, trustworthy and compliant marketing messages.
- Brief and coordinate campaign creatives.
- Run structured experiments to improve campaign performance.
- Ensure advertising claims are reviewed and approved before publication.

What We're Looking For

Essential
- 3+ years of hands-on growth or performance marketing experience.
- Proven experience marketing consumer fintech, finance or investment-related apps.
- Demonstrated success generating pre-launch waitlists or acquiring mobile app users.
- Strong experience with Meta Ads and Google Ads.
- Experience with conversion tracking, attribution and analytics.
- Understanding of US consumer audiences.
- Ability to work independently and deliver measurable results with modest budgets.
- Comfortable working in a fast-moving startup environment.

Highly Desirable
- Experience with gold, precious metals, wealthtech or consumer investment products.
- Familiarity with Customer.io, Amplitude, Firebase or similar tools.
- Experience with Apple Search Ads and mobile app attribution.
- Understanding of US financial advertising compliance.
- Experience with referral campaigns, community-led growth and organic acquisition.

What Success Looks Like

Before Launch
- A measurable acquisition strategy is in place.
- Paid campaigns are running and optimised.
- A qualified US waitlist is growing consistently.
- Acquisition costs and conversion rates are tracked.
- High-performing audiences and messages have been identified.
- A clear waitlist activation strategy is ready.

After Launch
- Waitlist subscribers are converting into app users.
- App acquisition campaigns are delivering measurable results.
- Cost per install, registration, verification and first purchase are tracked.
- The strongest acquisition channels are identified and scaled.

How We Work

We're a small, ambitious team preparing to enter the US fintech market.

We value initiative, transparency, commercial thinking and execution. We don't need lengthy strategy presentations. We need someone who knows how to acquire customers, make a modest budget work hard and build momentum around a new product.

This is initially a part-time freelance engagement, with the potential to expand as the business grows.

How to Apply

Please share:

1. A brief introduction outlining your relevant fintech or mobile app marketing experience.
2. One or two examples of pre-launch waitlist campaigns or app launches, including measurable results.
3. Your experience with Meta Ads, Google Ads and app acquisition.
4. Your hourly rate and weekly availability.
5. How you would approach acquiring the first 1,000 qualified US waitlist subscribers for a new fintech app.

We're looking for someone who can demonstrate real acquisition results, not just impressions and clicks.

I’m looking for an experienced FlutterFlow and Firebase developer to help improve an app already in development. You’ll refine the design, complete existing features, fix technical issues, and continue building toward launch. I’m a hands-on founder who prefers direct collaboration through live screen sharing for 2–4 hours per day, working step by step. I value clear communication, patience, efficiency, and honest professional advice. I want someone who can identify missing functionality, suggest improvements, and challenge ideas when needed. This is a long-term collaboration, starting with a paid 2-hour trial session to see how well we work together.

Remote freelance contract | Fixed-price milestones
Experience: 8+ years of professional software development
About Us
Beryl is an investment advisory and technology firm with deep domain expertise in Capital Markets and Private Markets.

We are building Beryl Elites X, a platform connecting institutional allocators, fund managers, and financial service providers through networking, company and fund research, due diligence, events, and subscriptions.

We seek a hands-on senior developer to improve our existing Phase 1 application and deliver agreed Phase 2 priorities, working directly with the Product Owner.
What You’ll Do
- Build frontend and backend features from specifications and Figma designs.
- Debug, review, and improve existing code while preventing regressions.
- Implement data models, business workflows, REST APIs, and third-party integrations.
- Enforce secure access across organizations, roles, subscriptions, and documents.
- Combine hands-on implementation with review and integration of AI-assisted work.
- Own initial QA through AI-assisted testing, automated tests, and manual verification.
- Support UAT, resolve defects, and prepare releases with clear test evidence and documentation.
Every delivered feature must be tested and personally verified. You must personally review all delivered code, including AI-generated code and tests. Automated checks or AI review alone are insufficient.
Required Experience
- 8+ years of professional software development, including hands-on ownership of complex web applications.
- Strong React, Next.js, Node.js, and TypeScript skills.
- MongoDB data modeling, indexing, and data integrity.
- Maintaining, debugging, and extending existing applications.
- Server-side authentication, authorization, and resource-level permissions.
- REST APIs and third-party integrations.
- Automated testing, API testing, and hands-on browser verification.
- Effective use of AI development and testing tools, with independent verification.
- Git, CI/CD, production troubleshooting, and clear communication.
Preferred Experience
- MongoDB transactions and permission-aware Atlas Search.
- AWS SNS/SQS and reliable asynchronous processing.
- CI/CD pipeline ownership and Playwright/Cypress.
- Maintaining and testing existing payment integrations.
- B2B SaaS, fintech, or complex document-access workflows.
Redis, Elasticsearch, Firebase, or Zoom experience is relevant only where inherited code actually uses those technologies; these are not requirements for new architecture.
Engagement and Delivery
We target an agreed release scope within six months. Milestone 1 is Phase 1 baseline and first remediation: establish a reproducible application baseline and deliver agreed fixes with reviewed code, regression tests and staging verification.

The Product Owner also contributes code. Subsequent fixed-price milestones have agreed deliverables, acceptance criteria and dates. The schedule includes implementation, human code review, testing, UAT, defect resolution and release preparation.

You own the quality of your implementation and the work you review and integrate. The Product Owner sets priorities, accepts business outcomes, and authorizes releases.
To Apply
Please include:
1. Your years of experience and recent work with Next.js, Node.js, and MongoDB.
2. A comparable delivery, specifying which parts you personally implemented, reviewed, tested, and released.
3. An example of a difficult bug or access-control issue you resolved.
4. How you review and integrate AI-assisted work and personally verify results.
5. The monthly capacity you can commit and how you budget implementation, review, and testing time.
6. Your hourly rate, timezone, earliest start date, and willingness to quote fixed-price milestones after reviewing the code and requirements.
Shortlisted candidates will be invited to a technical discussion about their experience and delivery approach.

We have an existing mobile app with a backend and web dashboards, and we’re looking for an experienced developer to help us move it forward and keep improving it long term.

What we’re looking for

Strong Flutter experience, with apps you shipped yourself
Backend experience with Node.js / TypeScript
Experience with right-to-left (RTL) layouts
Releasing apps through TestFlight, the App Store and Google Play
Comfortable picking up a codebase you didn’t write

To apply, please share:

A Flutter app you built and shipped yourself (store link), and your role in it.
Your availability per week.
How you usually approach taking over an existing project.

Details will be shared with shortlisted candidates.

We’re looking for an experienced developers to build a customisable 360° leadership feedback module inside our existing coaching platform. The module needs to connect to our AI coach and produce a practical development plan. Please send a fixed-price quote and your earliest realistic delivery date.

Tech stack: React (Vite), Firebase (Auth, Firestore, Cloud Functions, Hosting) and the OpenAI API. React and Firebase experience is essential.

The user journey
Assessment → feedback report → coaching conversation → approved development plan → progress review

Spidergap is a reference for the workflow and reporting only. The design and questions will be our own.

Phase 1: first release (priority)

Customisable assessment: a default questionnaire, with admins able to edit competencies, questions, rating scales and branding, and save templates
Feedback collection: self-assessment, invites to managers, peers and direct reports, email reminders, autosave, completion tracking, and a mobile rater survey with no login
Results: self vs others by competency and rater group, strengths, development priorities, written comments, an on-screen dashboard and a branded PDF report
AI coaching hand-off: results flow into our existing AI coach, which helps the leader choose 1–2 development priorities. All AI output must be grounded in the actual aggregated results.
Development plan: an editable 30/60/90-day plan with goals, actions, success measures and deadlines, which the leader approves
Privacy:
Each organisation’s data kept separate
Permission-based access to reports
A minimum of 3 responses per rater group before scores show
Server-side aggregation
Comments shown unattributed
No individual responses passed to the AI

Phase 2 (quote separately)

Weekly check-ins and reminders
Action tracking
Follow-up pulse assessment
Team and organisation dashboards
Advanced report customisation

Timing
This is urgent. Please tell us whether the core 360 (self-assessment, rater survey, scoring and report) can be live within 3 weeks. If not, tell us what can be, and when the rest would follow.

In your proposal, please include

What you can deliver in 3 weeks
A fixed-price quote for Phase 1 with milestone payments, plus a separate Phase 2 quote
A weekly milestone plan and your earliest delivery date
Expected ongoing costs (hosting, email, PDF, AI usage, maintenance)
Examples of survey, assessment or 360 tools you’ve built
Your experience working in a codebase built by someone else
Your availability to start this week

Requirements

NDA before codebase access
All code and IP assigned to us
Daily updates, with something we can test
Overlap with Australian business hours (AEST) preferred

Ansanm is a Haitian Creole-first dating app for the Haitian community and diaspora. V1 scope: real user accounts, profiles with photos, swipe/match, real-time chat, safety tools (report/block), and subscriptions. Video chat is Phase 2, not V1. The client owns the source code and all accounts. Work is milestone-based through Upwork only, starting with a small first milestone: app skeleton + auth + profiles. When you apply, please include: links to 2-3 live apps you built, your recommended stack and why, your V1 timeline, a milestone-based fixed-price quote, how your pricing scales at 1k/10k/50k users, and your availability overlap with US Eastern Time.

Flutter Mobile App Developer Needed

We are looking for a Flutter developer with experience building iOS and Android mobile applications.

Junior and independent developers are welcome to apply.

Requirements:
- Experience with Flutter and Dart
- Experience developing mobile applications
- Familiarity with Firebase, Supabase, or similar backend services
- Ability to demonstrate previous Flutter projects

Please share examples of mobile applications you have personally developed, including personal projects, prototypes, or unpublished apps.

We are interested in connecting with developers for potential mobile app projects.

We need a 360° feedback module built inside our existing leadership coaching platform. It will run on a proprietary 45-item leadership questionnaire and must be live with real clients within 3 weeks. The platform already handles organisations, user invites and reminders, PDF reports and AI coaching, so you'll be extending what's there rather than building from scratch.

What we need built (MVP)

• Leader self-assessment on a fixed 45-item questionnaire with a rating scale and rater groups (e.g. manager, peers, direct reports)
• Rater invites and automated reminders, using the platform's existing email features
• Mobile-friendly rater survey. Raters answer in their phone browser with no login or app.
• Anonymity thresholds so individual rater responses can't be identified
• Scoring by competency and rater group, including self vs others comparison
• Individual report on screen and as a branded PDF
• Admin view within the platform to set up participants, track completion and resend invites
• Privacy controls. Only the leader sees their report by default, with an option to share it with a coach or manager.

Nice to have (later phase, quote separately)

• AI debrief grounded in the scores, connected to the platform's existing AI coaching
• 30/60/90-day development plan
• Client branding and custom report sections
• Team and organisation-level dashboards
• 6-month re-run and pulse check-ins

Timeline

• Working build for a pilot group within 2 weeks
• Live for clients by the end of week 3
• We'll provide the full questionnaire, scale, rater groups and scoring rules, plus codebase access and a technical walkthrough, on day one.

About you

• Proven experience building survey, assessment or 360° feedback tools (please share examples)
• Comfortable working in an existing codebase and following its conventions
• Comfortable with secure handling of personal data and anonymity logic
• Able to start immediately and give daily progress updates
• Overlap with Australian business hours (AEST) preferred
• Willing to sign an NDA before codebase access

To apply, tell us:

1. Similar tools you've built, with links or screenshots
2. Your experience adding features to an existing platform someone else built
3. How you'd deliver this in 3 weeks, with milestones
4. Your availability to start this week

Tech stack: React 19 (Vite), Firebase (Auth, Firestore, Cloud Functions, Hosting), OpenAI API. Firebase and React experience is essential.

Cobraste is looking for a hands-on marketing contractor to take over and run our B2B and B2C campaigns across email and WhatsApp in HubSpot and push notifications in our own platform, build our B2B presence on LinkedIn, and launch and manage our B2C social channels. This is a doer role, not a strategy or management role. You will write, build, send, measure and iterate the campaigns yourself, in Spanish and English, inside HubSpot and the social platforms.

About Cobraste
Cobraste is a fintech company serving employers and workers in Puerto Rico, the Caribbean and Latin America. We give employees access to the wages they have already earned before payday, deliver tips digitally the same day, and provide Afi, an AI financial mentor that helps people build better money habits. There are no fees for the employer or the employee, and employers can get started without a payroll system integration.

We market to two audiences at once. On the B2B side, our buyers are owners, HR and payroll leaders at employers with hourly and tipped workforces, plus payroll and HR partners who resell or refer us. On the B2C side, our users are the employees who download and use the Cobraste app every week.

What you will do
You will own the day-to-day execution of our marketing. Four areas:

1. Run our HubSpot campaigns (B2B and B2C)
• Take over our existing HubSpot Marketing Hub campaigns and workflows for both audiences and run them end to end
• Build, send and maintain email and WhatsApp campaigns in HubSpot (WhatsApp runs through HubSpot's direct Meta connection) and push notification campaigns through the Cobraste platform, including the lists, segments, triggers, workflows and sequences behind them
• Configure and maintain HubSpot: lists and active segments, workflows, forms, landing pages, lead scoring, campaign tracking, reports and dashboards
• Keep contact data, properties and enrollment logic clean so the right person gets the right message at the right time
• Report weekly on sends, open and click rates, replies, conversions and unsubscribes, and recommend what to change

2. Review, update and iterate the content
• Audit every active message in both languages and fix what is weak, outdated or off-brand
• Write and rewrite emails, WhatsApp messages, push notifications and landing page copy in Spanish and English
• Run A/B tests on subject lines, send times, message length and calls to action, and roll the winners into the live campaigns
• Keep tone, naming and claims consistent across every channel

3. Build B2B marketing on LinkedIn
• Set up and run a consistent posting cadence for the Cobraste company page, with content that speaks to employers, HR and payroll leaders, and channel partners
• Write posts, carousels and short articles that drive to our calculators, landing pages and demo requests
• Manage LinkedIn ad campaigns, including audiences, creative, budget pacing and reporting
• Feed LinkedIn engagement into HubSpot so it becomes pipeline, not just impressions

4. Establish and manage B2C marketing on social media
• Set up, grow and manage our social channels for employees and the general public, starting with Instagram, Facebook and TikTok
• Plan and publish a content calendar in Spanish and English that builds the Cobraste brand and drives app downloads and activation
• Produce or coordinate simple creative (graphics, short video, stories) and keep it on brand
• Monitor comments and messages, respond quickly, and route support questions to the right person
• Track followers, reach, engagement and app installs by channel and report monthly

Must have
• Fluent, professional-level Spanish and English, written and spoken. You will write customer-facing copy in both every week. Latin American Spanish preferred.
• Deep, hands-on HubSpot Marketing Hub experience: you have personally built workflows, sequences, active lists, forms, landing pages, lead scoring, campaigns and reporting dashboards, and you can explain how they fit together
• Experience running email and WhatsApp campaigns from HubSpot, including WhatsApp through HubSpot's native Meta connection, and comfort building, testing and troubleshooting those sends. Our push notifications are sent from the Cobraste platform, so you will also manage the copy, segments and timing for push alongside the HubSpot campaigns
• Proven B2B LinkedIn experience: organic content for a company page, plus LinkedIn campaign management
• Proven B2C social media management on Instagram, Facebook or TikTok, with growth and engagement results you can show
• Strong copywriting and editing. You can make a message shorter, clearer and more persuasive without being asked
• Comfortable owning execution with minimal supervision: you set your own weekly plan, ship on schedule and report results without being chased
• Able to work with regular overlap with Eastern, Atlantic and some overlap with Pacific time

Nice to have
• HubSpot certifications (Marketing Hub Software, Email Marketing, Content Marketing)
• Experience marketing a fintech, payroll, HR tech or consumer mobile app
• Experience selling to or marketing in Puerto Rico, the Caribbean or Mexico
• Working knowledge of Webflow, Canva and basic video editing for short-form social
• Experience with mobile push and messaging platforms (for example OneSignal, Firebase or Twilio)
• Paid social experience on Meta and TikTok Ads
• Experience working directly with a founder at an early-stage company
Engagement details
• Initial term: 30 to 90 days, with the expectation of extending and expanding the scope for the right person
• Hours: 8 to 16 hours per week, with a consistent weekly schedule
• Rate: propose your hourly rate in your application
• Tools provided: HubSpot Marketing Hub, our social accounts, brand assets, existing campaign and content library
• Weekly check-in call plus a short written status update every Friday

Build a B2B SaaS Dashboard for One-Click Employee Offboarding across 5 Core Apps (MVP)

Project Description / Scope of Work:

Overview:
We are looking for an experienced Full-Stack Developer (or small team) to build a Minimal Viable Product (MVP) for "OffboardPulse"—a lightweight B2B web application that helps small-to-medium businesses (10–50 employees) revoke former employee access across multiple SaaS applications in 1 click.

When an employee leaves a company, business admins waste hours logging into 5–10 different websites to revoke access. This tool connects via APIs to automate user deactivation, prevent data security risks, and eliminate wasted software license seats.

Key Features & Requirements:

1. Client Admin Dashboard
- Employee Directory: Simple UI to add employees, view their current status, and manage their assigned software seats.
- App Connection Hub: Secure OAuth 2.0 & Admin API Key connection manager where admins connect their company’s workspace accounts.
- One-Click Offboard Action: Triggering "Offboard Employee" sends concurrent API requests to revoke user access across all linked apps.
- Audit Log & Timestamp History: Visual activity log documenting successful revocations for company compliance records.

2. Core App Integrations (5 Initial Apps for MVP)
Automated API calls must handle the following deactivations:
- Google Workspace Admin SDK API: Set user account status to "suspended".
- Slack Admin / SCIM API: Set member profile status to "deactivated".
- GitHub REST API: Remove user from organization membership and revoke repository access.
- Figma Admin API: Revoke active design seat / remove member from team space.
- Notion Admin API: Remove user from workspace team members list.
- Fallback Checklist: For non-connected apps, display a clean checklist with direct deep-links to the app’s admin settings page.

3. Authentication & Billing Integration
- Secure Admin Authentication (Email/Password + Google OAuth login).
- Stripe Checkout or Lemon Squeezy integration for monthly recurring subscription tiers ($29/mo and $49/mo).

Preferred Tech Stack:
- Frontend: Next.js (React) + Tailwind CSS (clean, modern responsive design)
- Backend: Node.js / Serverless API routes
- Database & Auth: Supabase (PostgreSQL) or Firebase
- Deployment: Vercel / Cloudflare

Freelancer Qualifications:
- Demonstrable experience building production-ready Next.js / React SaaS MVPs.
- Direct expertise working with 3rd-party REST APIs, OAuth 2.0 flows, and webhooks.
- Ability to write clean, maintainable code using standard developer API libraries.

Milestones & Deliverables:
- Milestone 1 ($25%): Database Schema, Responsive UI Mockup, User Auth & App Dashboard setup.
- Milestone 2 ($35%): OAuth Connection Engine + API Integrations for Google Workspace, Slack, and GitHub.
- Milestone 3 ($25%): API Integrations for Figma & Notion + 1-Click Offboarding Engine & Audit Log UI.
- Milestone 4 ($15%): Stripe/Lemon Squeezy Billing Integration, Bug Testing & Live Production Deployment.

How to Apply:
Please start your bid with the phrase "Offboard SaaS Developer" so I know you read the complete scope.
Please include:
1. Links to 2–3 live web applications or SaaS tools you have built.
2. Estimated timeline to deliver this MVP (Target: 3 to 5 weeks).
3. The tech stack you recommend for fast, scalable execution.

Skills: PHP, Software Architecture, MySQL, Node.js, AngularJS, OAuth, Full Stack Development, API Development, Next.js, SaaS Development

I am looking for an experienced developer to build the first version of an English-language community website for people aged 35 and over. The goal is to help members meet new people and join activities together.

Required features
- Member profiles with photo, age, town and interests
- Activity calendar with per activity: maximum number of participants, age range, location and audience (mixed, women only or men only)
- Sign up, cancel and an automatic waiting list
- Members can propose activities; an admin approves them
- Messaging between participants
- Simple admin dashboard
- Free trial period followed by a paid monthly subscription
- Mobile first and fully responsive
- Structure that can expand to other regions later

Design direction: cheerful Mediterranean colours and a small palm tree logo. A designer may provide the visual direction.

Requirements
- Proven experience building community or membership platforms
- Experience with recurring payments (for example Stripe)
- All accounts, code and data must be owned by the client from day one
- Clear communication and documentation

In your proposal, please include
1. Links to two or three community or membership websites you have built
2. Which platform or tech stack you would use and why
3. Estimated build cost for the first version
4. Expected recurring costs (hosting, plugins, payments)
5. Estimated timeline

Proposals without examples of comparable work will not be considered.

We are currently in a high-growth phase with our flagship product — a VPN service. We are looking for an experienced Performance Marketing Specialist (Facebook / Meta Ads) to help us scale it to the next level.

Key Responsibilities:
- Set up, launch, manage, and optimize advertising campaigns across Meta Ads (Facebook & Instagram).
- Develop and execute user acquisition strategies focused on driving trials and paid subscriptions for iOS and Android apps.
- Build and structure campaigns optimized for a subscription model (trial → paid subscription).
- Continuously optimize campaigns against key KPIs: CPI, CPA trial, CPA purchase, ROAS, LTV, and payback period.
- Manage audience targeting, GEO segmentation, custom audiences, lookalike audiences, and retargeting strategies.
- Work with creative assets (videos, static banners, ad copy), including preparing clear briefs for designers and video editors.
- Run continuous A/B testing and hypothesis validation across creatives, audiences, placements, GEOs, and subscription funnels.
- Integrate and work with mobile attribution and analytics tools: AppsFlyer, Adjust, Firebase, Google Analytics, and SKAdNetwork (iOS).
- Independently set up, validate, and troubleshoot conversion tracking and in-app events (installs, trial starts, purchases).
- Ensure accurate data flow between mobile attribution platforms and Meta Ads for effective campaign optimization.
- Analyze campaign performance, identify scaling opportunities, and maintain traffic quality.
- Prepare regular performance reports with actionable insights and recommendations.

Requirements:
- 3+ years of hands-on experience managing Meta Ads campaigns for mobile applications.
- Mandatory hands-on experience promoting subscription-based mobile apps, preferably VPN, utilities, or productivity apps.
- Strong understanding of subscription economics, including trial-to-paid conversion funnels, LTV, ROAS, and payback period calculations.
- Proven experience managing and scaling substantial monthly advertising budgets.
- Strong expertise in Meta Ads Manager, including campaign structure, audience targeting, creative testing, and optimization.
- Hands-on experience with mobile attribution tools (AppsFlyer / Adjust, Firebase, SKAdNetwork).
- Ability to independently configure, validate, and troubleshoot conversion events and tracking integrations.
- Proven experience optimizing campaigns for paid subscriptions, not just installs.
- Experience developing creative testing strategies and working with designers or external creative teams.
- Strong analytical skills and a data-driven approach to campaign optimization.
- Ability to work independently, take ownership of results, and proactively identify growth opportunities.

We are looking for an experienced React Native developer to help improve and expand an existing mobile application available on iOS and Android.

The core application is already built, and we need a reliable developer who can work with our existing codebase, implement new features, integrate APIs, resolve bugs, and prepare stable releases for both platforms.

We are looking for someone who can take ownership of assigned features, communicate clearly, and deliver clean, maintainable code.

Responsibilities
- Develop and maintain cross-platform mobile applications using React Native and TypeScript.
- Integrate REST APIs and third-party services.
- Implement secure authentication, user registration, and account management.
- Build payment flows and subscription features where required.
- Improve app performance, troubleshoot bugs, and handle edge cases.
- Implement push notifications and real-time features when needed.
- Manage iOS and Android builds, testing, and release preparation.
- Collaborate with our backend developer and provide regular progress updates.
Requirements
- Proven experience with React Native for iOS and Android.
- Strong knowledge of JavaScript, TypeScript, React Navigation, and state management.
- Experience integrating REST APIs and handling authentication.
- Familiarity with payment integrations such as Stripe or in-app subscriptions through RevenueCat.
- Experience debugging existing codebases and resolving production issues.
- Knowledge of App Store and Google Play deployment processes.
- Ability to work independently and deliver features in clearly defined milestones.
Nice to Have
- Node.js and Express backend development.
- Firebase authentication, push notifications, and real-time databases.
- Experience with fintech, SaaS, e-commerce, logistics, or booking applications.
Project Scope

We will begin with a defined set of features and bug fixes. If the collaboration goes well, there may be opportunities for ongoing development and additional projects.

When applying, please include:
1. Examples of React Native applications you have worked on.
2. Your experience integrating APIs, payments, or subscriptions.
3. An example of a challenging bug or production issue you resolved.
4. Your availability and estimated hourly rate.
We value practical experience, clear communication, and reliable delivery over generic proposals.

We are looking for an experienced Flutter Developer and AI App Developer for a technical consultation regarding an existing mobile application built with Flutter and Dart.
The application is already developed and available for Android and iOS. We would like to discuss one existing user-facing feature and get professional recommendations regarding its current implementation and possible improvements.
During the consultation, we would like to review several areas, including Flutter and Dart development, Mobile App Development, state handling, input validation, Firebase, API Integration, and Software Debugging.
The application also includes AI-related functionality, so we would like to discuss the current approach from an AI App Developer perspective, how the AI functionality should interact with the mobile application and backend, and whether the existing technical approach is appropriate.
We are also interested in recommendations from an experienced Flutter Developer and AI App Developer regarding Android and iOS Development, cross-platform implementation, Firebase structure, API integrations, potential technical risks, and the best way to improve the feature without making unnecessary changes to the existing application architecture.
This is a consultation-only project. No development or code changes are required as part of this contract.
The goal of the consultation is to review our current approach, answer technical questions, identify potential issues, and provide clear recommendations for our development team.

A comprehensive salon booking and management application designed to connect customers with beauty salons while helping salon owners manage appointments, staff, services, and business operations through a centralized platform.

Key Features

1. Customer Application

User registration, login, and profile management

Salon discovery, search, and service filtering

Service details, pricing, and availability

Appointment booking, rescheduling, and cancellation

Favorite salons and booking history

Online payment integration and booking notifications

2. Salon Owner Dashboard

Salon profile and service management

Staff management and working schedules

Appointment and availability management

Booking status updates

Revenue tracking and business analytics

Customer and payment record management

3. Super Admin Panel

Customer and salon owner management

Salon registration and approval

Centralized booking management

Service category and content management

Revenue reports and platform analytics

Role-based access control and platform settings

Technology Stack

Frontend: React.js / Next.js, HTML5, CSS3, JavaScript

Backend: Node.js, Express.js, REST APIs

Database: PostgreSQL or MongoDB

Authentication: Secure login, JWT, role-based authorization

Payments: Payment gateway integration

Notifications: Email, SMS, and push notifications

Deployment: Cloud hosting, production configuration, and testing

We're looking for an experienced Flutter developer to improve an existing mobile application for Android and iOS.

The project involves fixing existing bugs, improving app performance, refining UI components, and implementing a few small feature updates.

Responsibilities:

Fix bugs and improve app stability

Optimize Flutter app performance

Improve existing UI/UX components

Implement minor feature enhancements

Test and ensure smooth functionality on Android and iOS

Looking for a reliable developer who can deliver clean, maintainable code and communicate effectively.


Required Skills

Mobile App Development

Flutter

Dart

Android App Development

iOS Development

Firebase

API Integration

Bug Fixes

Job Title:
​Need Flutter Developer for a Party Game Randomizer App (Numbers, Dice & Spinner)
​Job Description:
​We are looking for a developer to build a fast, interactive Randomizer App designed for party games, board games, and decision-making among friends. The app will feature a customizable number generator, 3D/animated dice roller, and a dynamic spinning arrow/wheel to randomly select players or choices.
​Key Features & Deliverables:
​Number Randomizer: Custom range selection (e.g., 1–100), allow/disallow repeat numbers, and instant output display.
​Dice Roller: Multi-dice support (D6, D20, custom counts) with smooth tap/shake rolling animations.
​Arrow / Wheel Spinner: Interactive spinning arrow or decision wheel to choose random players or options.
​Game Presets & History: Save custom room setups and track recent roll/spin results in real time.
​Required Tech Stack:
​Frontend / App: Flutter (Mobile & Web)
​Backend / Database: Supabase (Auth & Postgres for saving user presets and game history)

ABOUT THE APP

We're launching a mobile app that delivers concise summaries of books and podcasts — helping busy professionals and learners absorb key ideas faster. We're in the final stages before launch and need a skilled performance marketer to drive installs and growth through paid channels.

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WHAT WE'RE LOOKING FOR

We need an experienced mobile app performance marketer who has a proven track record of running paid user acquisition campaigns. This is a hands-on execution role — we want someone who can set up, run, optimize, and report on paid campaigns from day one.

Your responsibilities will include:

• Paid User Acquisition — Running and optimizing campaigns on Meta Ads, Google UAC, TikTok Ads, and/or Apple Search Ads (ASA)
• Campaign Setup & Structure — Building proper campaign architecture, targeting, and audience segmentation
• Creative Briefing — Advising us on what ad creatives (visuals, copy, formats) to produce for best performance
• Ad Copywriting — Writing compelling ad copy that drives installs
• Budget Management — Efficiently managing and allocating ad spend to maximize results
• Analytics & Reporting — Tracking and reporting on key metrics: CPI, CAC, ROAS, CTR, and retention
• Testing & Optimization — Running A/B tests on creatives, audiences, and placements to continuously improve performance

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CONTRACT & BUDGET

We believe in starting small and scaling with trust.

• First Contract: $1,000 ad spend budget to test campaigns, validate channels, and show what you can do
• Second Contract: If we're happy with your work, we will offer a new contract with the remaining $9,000 ad spend budget

Note: This ad spend budget is separate from your freelancer fee. We're serious about scaling — the $9K follow-up contract is real and ready for the right person.

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REQUIREMENTS

• Proven experience running paid UA campaigns specifically for mobile apps (iOS and/or Android)
• Strong command of at least one major ad platform — Meta Ads, Google UAC, TikTok Ads, or Apple Search Ads
• Experience with install tracking and attribution (e.g., Appsflyer, Adjust, or Firebase)
• Ability to read data and make fast, smart optimization decisions
• Clear and regular communication — we want to know what's working, what's not, and why
• Portfolio or case studies with real results (show us installs, CPI, or ROAS numbers)

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NICE TO HAVE

• Experience in apps within the books, education, productivity, or media/content niche
• Experience running campaigns on multiple platforms simultaneously
• Familiarity with both iOS and Android user acquisition differences

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HOW TO APPLY

To be considered, please answer these 3 questions in your proposal:

1. Which mobile app have you marketed before — what platform did you use and what results did you achieve? (Share numbers)
2. For a book/podcast summary app, which paid channel would you start with and why?
3. How would you structure and spend an initial $1,000 test budget?

Generic proposals will be ignored. We want someone who has done this before and has a clear, confident point of view.

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Skills: Analytics, Social Media Marketing, Digital Marketing, PPC Marketing, App Store Optimization, A/B Testing, YouTube Ads, Google Ads, Tiktok Ads, Instagram Ads

I’m building a mobile space where customers and service providers can connect for real-time support and conversation. The heart of the product is messaging: users will hold one-to-one chats, spin up group discussions, and post to wider community threads while freely sharing photos, videos, and other files. I need an experienced engineer who can own the full build for both iOS and Android from a single codebase.

Key elements you’ll implement
• Secure sign-up and login with Email, Google, and Apple ID
• Role-based profiles (Customer, Service Provider, Admin) that unlock the right screens and permissions
• A clean, intuitive interface with searchable lists, rich detail views, and live data updates
• Push notifications that alert members to new messages, group activity, and account events

I’m flexible on the tech stack—Flutter, React Native, or any comparable cross-platform toolkit—as long as it delivers native-grade performance. Real-time messaging and file handling can run on Firebase, AWS Amplify, or a solution you recommend. Design polish matters; I’ll provide brand colors and starter wireframes, and I rely on you to refine the UX so first-time users feel at home immediately.

Deliverables
1. Fully functional iOS and Android apps, ready for App Store and Play Store submission
2. Lightweight admin panel or API endpoints to manage users, roles, and reported content
3. Well-structured, documented source code and a brief hand-off guide
4. Post-launch support window for defect fixes and store approval adjustments

If you have a track record shipping chat-heavy apps with push alerts and social features, let’s discuss your approach, preferred tools, and estimated timeline.

Skills: Mobile App Development, iPhone, Android, Amazon Web Services, iOS Development, React Native, Flutter, API Development

Do not submit a proposal if:
1. You are not a dedicated React Native CLI Developer (Profile and projects/experience)
2. You are not an individual developer (Teams/Companies)
3. You have not worked with React Native CLI

We are looking for an experienced React Native CLI developer to help complete our two existing ride-hailing applications: Rider and Captain.

Both applications are in their final stages of development, with most features and functionality already implemented. They share similar codebases, architecture, and functionality, allowing common implementations and fixes to be reused where applicable.

We need someone experienced in working with existing codebases to complete the remaining API integrations, resolve documented issues, and improve overall application stability, performance, and reliability.

Scope of Work

1. API Integration

Integrate the remaining backend APIs, which are already developed and available.

Shared / Common Features (Rider & Captain)

Delete Profile
App Version Check
Ride History & Ride Details
Promo Codes & Redemption
Add / Delete Payment Methods
Checkout / Make Payments
Transaction History
Notifications Integration (device token registration, push notification handling, foreground/background notifications, notification navigation, notification history, and related functionality)
Heat-map View
Update Captain Legal Documents
Update Captain Vehicle Pictures
Payouts / Withdrawals

Shared functionality should be implemented efficiently, reusing existing patterns, utilities, and logic wherever appropriate rather than duplicating unnecessary work between applications.

All integrations must include proper API response handling, loading states, error handling, and accurate synchronization with backend data.

2. Bug Fixes & Code Improvements

Both applications have already undergone code reviews, and the identified issues are documented in detailed reports.

The work will focus on agreed issues involving:

Application stability, state management, and lifecycle handling.
Ride workflows, real-time updates, and map performance.
Payment, wallet, and transaction handling.
API response handling, data consistency, and error recovery.
Performance bottlenecks, unnecessary re-renders, and inefficient list rendering.
UI inconsistencies, navigation, and general functional issues.
Code organization, maintainability, and targeted refactoring where necessary.
Other documented functional and technical issues agreed upon before implementation.

The detailed review reports are shared. The objective is to resolve the agreed issues and improve reliability without unnecessarily rewriting existing functionality. Only important issues in the reports are needed to be fixed, small/ineffective items can be ignored. The mentioned malware/backdoor issue is already resolved as well.

3. Testing & Verification

Test completed integrations and affected workflows on both Android and iOS.
Verify shared functionality independently in both applications.
Ensure existing functionality remains unaffected by changes.
Resolve regressions introduced during implementation.
Deliver clean, maintainable, and properly integrated code.

Requirements

Strong experience with React Native CLI (bare React Native, not Expo).
Experience integrating REST APIs into existing mobile applications.
Strong debugging, troubleshooting, and refactoring skills.
Good understanding of state management, asynchronous operations, and application performance.
Experience with Firebase Cloud Messaging (FCM), iOS push notifications, and notification lifecycle handling.
Familiarity with RTL and Arabic localisation, real-time communication, WebSockets, and ride-hailing applications is a strong advantage.
Ability to work independently, understand existing codebases quickly, and follow established project conventions.
Good communication and ability to provide regular progress updates.

Project Details

Applications: 2 existing React Native CLI apps (Rider & Captain)
Contract: Fixed-price
Potential: Long-term collaboration for future development and additional milestones

The applications share similar functionality, so we expect common integrations and solutions to be reused efficiently across both codebases.

This project focuses on API integration and bug fixing.

Additional features, including full RTL/localization improvements and server-driven UI (SDUI), are planned for later milestones with separate payments and are not part of this contract.

When Applying, Please also briefly share:

Your experience with React Native CLI, especially working with existing applications.
Examples of mobile applications you've developed, maintained, or improved.
Your experience with REST APIs, push notifications, real-time functionality, and debugging.
Your availability and estimated completion timeline for the project.

I am looking for an experienced Flutter developer to build and improve a mobile app for both iOS and Android (hybrid / cross-platform).

What I need:
- Build the app in Flutter and Dart (FlutterFlow experience is a plus)
- User login and signup with Firebase or Supabase
- RESTful API integration
- Payment gateway integration with Stripe
- In-app purchases
- AI features using the OpenAI API, including a chatbot
- Mobile app redesign: clean, modern and responsive UI
- Convert our existing website into a mobile app (if applicable)
- Bug fixing and performance improvements
- Push notifications

Requirements:
- Strong experience with Flutter and Dart
- Experience with Firebase, Supabase and REST APIs
- Experience with Stripe and in-app purchases
- Experience with OpenAI API / chatbot development
- Good knowledge of state management (Provider, Bloc or Riverpod)
- Clean, well-commented code and Git usage
- Ability to publish the app to Google Play Store and Apple App Store

Project details:
- Size: Medium
- Timeline: 1 to 3 months
- Level: Intermediate
- Budget: $15 - $30/hr

To apply, please share:
1. Links or screenshots of similar Flutter apps you have built
2. Your experience with Stripe, Firebase/Supabase and OpenAI integration
3. Your estimated timeline and how you would approach this project

I prefer regular progress updates and clear communication. Looking forward to your proposals.