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I have a small MERN stack application and need help fixing a login-related issue.

Current behavior:

* Users can log in successfully.
* Authentication appears to work.
* After login, users are not always redirected to the correct dashboard page.

Requirements:

* Investigate the issue.
* Fix the redirect behavior.
* Briefly explain the root cause and the changes made.

Tech Stack:

* React
* Node.js
* Express
* MongoDB

This is a small bug fix task and should be straightforward for someone familiar with MERN applications.

Please include:

* Relevant MERN experience.
* Estimated time to complete.

We are a fast-growing SaaS company building a scalable web platform used by thousands of daily active users. We're looking for a battle-tested Senior MERN Stack Developer to lead feature development, improve system architecture, and mentor junior developers.

You will own end-to-end delivery — from database modeling to polished React UIs — and collaborate directly with our product and design teams. This is a high-impact role where you'll work on real-time data, third-party integrations, and complex user workflows. We ship fast, iterate often, and take code quality seriously.

RESPONSIBILITIES

- Design and implement full-stack features using MongoDB, Express.js, React, and Node.js
- Architect scalable REST APIs and integrate third-party services (payment gateways, OAuth providers, etc.)
- Write clean, testable, and well-documented code following industry best practices
- Optimize frontend performance (lazy loading, code splitting, memoization)
- Manage database schemas, indexing strategies, and query optimization in MongoDB
- Participate in code reviews, sprint planning, and async stand-ups
- Identify technical debt and proactively propose solutions
- Mentor mid-level developers and contribute to internal documentation

REQUIRED SKILLS (What will make you WIN this job)

1. Advanced React & State Management
- Deep knowledge of hooks, Context API, Redux Toolkit or Zustand
- Ability to architect large-scale SPAs and reusable component libraries

2. Node.js & Express.js API Development
- Production-level experience building secure, scalable REST or GraphQL APIs
- Middleware design, JWT/OAuth authentication, and proper error handling

3. MongoDB & Database Architecture
- Schema design, aggregation pipelines, indexing strategies, Mongoose ORM
- Experience with MongoDB Atlas and query performance tuning

4. DevOps & Deployment Pipelines
- Hands-on with Docker, CI/CD (GitHub Actions or CircleCI)
- Deploying to AWS, GCP, Vercel, or Railway — comfortable with env configs and secrets management

5. Security & Performance Optimization
- OWASP best practices, rate limiting, input validation, XSS/CSRF prevention
- Profiling and optimizing Node.js apps under production load

6. Agile Collaboration & Git Workflow
- Strong async communication, disciplined Git practices (feature branches, PRs, semantic commits)
- Experience working in remote-first, agile/scrum teams

7. Testing & Code Quality
- Unit, integration, and E2E tests using Jest, React Testing Library, Supertest, or Cypress
- You treat tests as a first-class deliverable, not an afterthought

REQUIREMENTS

- 5+ years of professional software development experience
- 3+ years of focused MERN stack development in production environments
- Proven track record of delivering full-stack features independently
- Strong English communication skills (written and spoken)
- Available for at least 4 hours of overlap with UTC+0 to UTC+5
- Portfolio or GitHub profile with relevant professional or open-source projects


NICE TO HAVE

- Experience with microservices or event-driven architecture
- Familiarity with GraphQL (Apollo Server/Client)
- Prior work on SaaS or B2B platforms
- Upwork Top Rated or Top Rated Plus badge


HOW TO APPLY (Read carefully)

To be considered, start your proposal with the word "MERN" — this tells us you read the full post. Generic copy-paste proposals will be ignored.

Then briefly answer the following:

1. Describe a complex full-stack feature you built end-to-end (what was the problem, what did you build, and what was the outcome?)
2. What is the most challenging technical problem you've solved with Node.js or MongoDB?
3. Share your GitHub profile or portfolio link (or a short Loom walkthrough of relevant work)
4. What is your timezone and available working hours?
5. Can you join a 30-minute video call within 48 hours of applying?


We value long-term relationships. Top performers will be offered expanded scope and higher rates over time.

We look forward to hearing from you!

We are looking for a talented and experienced MERN Stack Developer to build a high-quality, scalable Full Stack Web Application for our project. If you are passionate about clean code, modern UI, and fast delivery — we want to hear from you!

📌 Project Overview:
We need a complete full stack web application developed using the MERN Stack (MongoDB, Express.js, React.js, Node.js). The ideal candidate will handle both frontend and backend development, ensuring a seamless and responsive user experience.

✅ Key Responsibilities:

Design and develop a responsive React.js frontend
Build RESTful APIs using Node.js and Express.js
Set up and manage MongoDB database (schema design, queries, indexing)
Implement user authentication (JWT / OAuth)
Ensure clean, maintainable, and well-documented code
Deploy the application (AWS / Vercel / Heroku or similar)
Deliver within 1 week deadline


🛠️ Required Skills & Experience:

Strong proficiency in MongoDB, Express.js, React.js, Node.js
Experience with REST API development
Knowledge of Git / GitHub version control
Understanding of responsive design and CSS frameworks (Tailwind / Bootstrap)
Experience with JWT authentication
Ability to work independently and meet tight deadlines
Strong communication skills


⭐ Preferred (Bonus) Skills:

Experience with Redux / Context API
Knowledge of Docker or CI/CD pipelines
Prior experience with Upwork projects (reviews preferred)
TypeScript knowledge is a plus


📋 What We Expect:

Daily progress updates
Clean and commented code
Full source code handover upon completion
1-week delivery — no exceptions


🏆 Why Work With Us:

Clear project requirements from day one
Quick responses and smooth communication
Long-term collaboration potential for future projects
Fair milestone payments


📩 How to Apply:
Please send your proposal with:

Your relevant MERN Stack portfolio or GitHub link
A brief explanation of how you will approach this project
Your estimated timeline for each phase
Any questions you have about the project


⚠️ Generic proposals will be ignored. Only serious, experienced developers need apply.

**Senior Backend Engineer – SaaS & Financial Integrations**

Servicia is building an AI-powered business operating system for U.S. founders and small businesses. We are seeking a Senior Backend Engineer to own the backend architecture and API integrations layer.

**Responsibilities**

* Design and build a secure multi-tenant SaaS backend.
* Implement authentication, RBAC, user management, billing, and data models.
* Build and maintain integrations with Stripe Connect, QuickBooks, Plaid, Merge, Codat, or Rutter.
* Develop OAuth connection flows and secure token management.
* Design reliable data synchronization, webhooks, and background jobs.
* Create clean internal APIs that support our in-house AI layer.
* Ensure scalability, security, and maintainable architecture.

**Requirements**

* 5+ years of backend engineering experience.
* Strong experience with Node.js/TypeScript or Python.
* Experience building multi-tenant SaaS platforms.
* Hands-on experience with Stripe Connect.
* Experience integrating financial and accounting platforms (QuickBooks, Plaid, Codat, Merge, Rutter, etc.).
* Strong understanding of OAuth, REST APIs, webhooks, and PostgreSQL.
* Familiarity with cloud infrastructure (AWS, GCP, or Azure).
* Excellent documentation and communication skills.

**Initial Paid Milestone**
Connect Stripe Connect and QuickBooks (via Codat or Merge) end-to-end, including authentication, account linking, data synchronization, and internal API abstraction.

**To Apply**
Please provide:

1. Relevant experience with Stripe Connect and financial integrations.
2. Examples of similar projects.
3. A brief explanation of how you would approach the initial milestone.

NDA and Data Processing Agreement (DPA) required.

Build a digital loyalty card SaaS platform (Apple/Google Wallet)

I’m building — a digital loyalty platform for independent venues (cafés, gyms, padel clubs) in Southeast Asia. A very close reference for what I want is perkstar.co.uk — please look at it before applying.

What the MVP needs to do:

• Customer side: customer scans a QR at the counter → enters email on a simple branded page → taps Add to Apple Wallet / Google Wallet. Branded card (stamps or points) lives in their wallet. No consumer app.
• Staff side: a simple Stamper web app — staff scan the customer’s card QR with any phone/tablet (or USB/Bluetooth scanner) to add stamps/points and redeem rewards. Sub-user logins with stamp-only permissions.
• Venue dashboard: card builder with live preview (logo, colors, stamp count, rewards), member list, basic analytics (visits, active members, inactive members), manual + automated push notifications (e.g. win-back after X days inactive).
• Multi-tenant: one platform, many venues, isolated data.

Stack (flexible, open to your recommendation): Node.js/TypeScript or Python, PostgreSQL, React or Vue, Apple PassKit + Google Wallet API (open to using a pass-engine wrapper like PassKit API/SmarterPass), Xendit or Midtrans for billing later.


To apply, please tell me: (1) Have you shipped an Apple/Google Wallet pass integration before? Show me. (2) Have you built a multi-tenant SaaS? (3) A mobile-responsive dashboard you’ve built. (4) Your estimated timeline and cost for this MVP, broken into milestones.

We are seeking a skilled web developer to create a professional website for our business. The ideal candidate will have experience in web development, WordPress, and HTML5. The project involves designing and building a website that effectively communicates our brand and services. The developer should ensure the site is user-friendly and optimized for search engines. If you have a passion for web design and a keen eye for detail, we would love to hear from you.

• Describe your recent experience with similar projects
• Please list any certifications related to this project
• Include a link to your GitHub profile and/or website
• What frameworks have you worked with?
• Describe your approach to testing and improving QA

We are seeking an experienced MERN Stack Developer to build a modern web application featuring an AI-powered customer support chatbot with Retrieval-Augmented Generation (RAG) capabilities.

The goal is to create an intelligent support system that can answer customer questions, retrieve information from our knowledge base, provide accurate responses, and reduce manual support workload.

Required Technologies:

MongoDB
Express.js
React.js
Node.js
OpenAI API / LLM Integration
RAG Architecture
Vector Databases (Pinecone, Weaviate, Qdrant, Chroma, or similar)
REST APIs
Authentication & User Management
Cloud Deployment (AWS, Azure, GCP, or similar)

Project Requirements:

Develop a complete MERN Stack application
Build an AI-powered customer support chatbot
Implement RAG functionality for accurate knowledge retrieval
Upload and index documents, PDFs, FAQs, and knowledge base content
Create semantic search and vector embedding workflows
Maintain conversation history and context
Support multilingual responses
Build an admin dashboard for managing knowledge sources
Create analytics and reporting for chatbot performance
Implement role-based access controls
Ensure scalability, security, and performance optimization

Key Features:

Real-time AI chat interface
Human-like customer support responses
Knowledge base integration
Document ingestion and processing
Conversation memory
Lead capture and customer data collection
Ticket creation and escalation workflows
Chat history management
API integrations with third-party platforms

Ideal Candidate:

Strong MERN Stack development experience
Proven experience building AI applications and chatbots
Experience with OpenAI, Anthropic, Gemini, or similar LLMs
Hands-on experience with RAG systems and vector databases
Experience deploying production-grade applications
Strong understanding of AI security and performance optimization

To Apply:
Please provide:

Examples of MERN applications you have built.
AI chatbot or RAG projects you have completed.
Your preferred vector database and why.
Suggested architecture for this project.
Estimated timeline and budget.

We are looking for a developer who can build a scalable, production-ready AI customer support platform and potentially work with us on future AI projects.

We are looking for an experienced Full Stack Developer to implement a secure and scalable file upload system within our existing web application. The ideal candidate should have strong experience with React, Next.js, Node.js, cloud storage services, and backend API development.

This project involves building the complete file upload workflow, including backend APIs, cloud storage integration, frontend implementation, validation, and secure file handling.

Responsibilities
Develop secure file upload APIs using Node.js and Express.js
Integrate cloud storage services such as AWS S3, Cloudflare R2, or similar
Configure file storage, retrieval, and access permissions
Implement frontend file upload components using React and Next.js
Display uploaded files and file references within the application UI
Handle upload progress indicators and user feedback
Enforce file type, size, and security validations
Prevent unauthorized access and ensure secure file handling practices
Perform testing and ensure reliable upload performance
Write clean, maintainable, and well-documented code

Tech Stack:

= Frontend
React.js
Next.js
Tailwind CSS
REST API Integration

= Backend
Node.js
Express.js
File Upload Middleware (Multer or similar)
Authentication & Authorization

= Cloud Storage
AWS S3 (Preferred)
Cloudflare R2
DigitalOcean Spaces
Other S3-compatible storage providers

= Requirements
Proven experience building file upload systems in React and Node.js applications
Strong knowledge of AWS S3 or similar cloud storage platforms
Experience handling file validation, security, and access control
Understanding of scalable backend architecture and API development
Familiarity with Next.js frontend integrations
Ability to deliver production-ready code with proper documentation
Strong communication and problem-solving skills

Nice to Have
Experience with TypeScript
Experience with image optimization and processing
Knowledge of signed URLs and secure file access patterns
Experience deploying applications on AWS, Vercel, or similar platforms

Please read the job description carefully before applying. Proposals that do not follow the job description will not be considered.

𝗪𝗼𝗿𝗸 𝗦𝗰𝗵𝗲𝗱𝘂𝗹𝗲 & 𝗖𝗼𝗺𝗽𝗲𝗻𝘀𝗮𝘁𝗶𝗼𝗻
𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗛𝗼𝘂𝗿𝘀: Indian Standard Time (IST)
𝗛𝗼𝘂𝗿𝗹𝘆 𝗥𝗮𝘁𝗲: $4.38 - $5 /- USD
𝗟𝗼𝗻𝗴-𝗧𝗲𝗿𝗺 𝗢𝗽𝗽𝗼𝗿𝘁𝘂𝗻𝗶𝘁𝘆: If you consistently meet requirements and perform well, this can become a full-time, long-term position.

𝗔𝗯𝗼𝘂𝘁 𝘁𝗵𝗲 𝗥𝗼𝗹𝗲
We are looking for an experienced Full Stack Developer to join our growing development team. The ideal candidate should have strong hands-on experience building scalable applications using Node.js, Express.js, React.js and MongoDB.

You will be responsible for developing new features, maintaining existing applications, building APIs, optimizing performance and collaborating with the team to deliver high-quality software solutions.

𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀

𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
• Develop and maintain applications using Node.js, Express.js, React.js and MongoDB.
• Build scalable and secure RESTful APIs.
• Design and implement responsive user interfaces.
• Develop reusable components and frontend modules.
• Optimize application performance and scalability.
• Troubleshoot, debug and resolve technical issues.
• Collaborate with designers, developers and stakeholders to deliver projects on time.
• Write clean, maintainable and well-documented code.
• Participate in code reviews and technical discussions.

𝗥𝗲𝗾𝘂𝗶𝗿𝗲𝗱 𝗦𝗸𝗶𝗹𝗹𝘀
• 5+ years of experience in Full Stack Development.
• Strong expertise in:
• Node.js
• Express.js
• React.js
• MongoDB
• Strong understanding of REST APIs and backend architecture.
• Experience with Git and version control systems.
• Good understanding of database design and optimization.
• Ability to write clean, scalable and maintainable code.
• Strong problem-solving and debugging skills.
• Good communication skills and ability to work independently.

𝗡𝗶𝗰𝗲 𝘁𝗼 𝗛𝗮𝘃𝗲
• Experience with Redux or Context API.
• Experience with cloud deployment and server management.
• Experience with third-party API integrations.
• Familiarity with modern frontend build tools and frameworks.
• Previous experience working on SaaS applications.

𝗪𝗵𝗮𝘁 𝗪𝗲 𝗮𝗿𝗲 𝗟𝗼𝗼𝗸𝗶𝗻𝗴 𝗙𝗼𝗿
We are looking for someone who is reliable, proactive and interested in building long-term relationships. If you are passionate about creating high-quality applications and want to grow with our team, we would love to hear from you.

𝗪𝗵𝗲𝗻 𝗮𝗽𝗽𝗹𝘆𝗶𝗻𝗴, 𝗽𝗹𝗲𝗮𝘀𝗲 𝗶𝗻𝗰𝗹𝘂𝗱𝗲:
1. Why you believe you are a good fit for this role.

• How many years of professional experience do you have with Node.js, Express.js, React.js and MongoDB?
• Please share links to 2-3 live applications or GitHub repositories that demonstrate your experience.

We are looking for a Senior Full Stack JavaScript Developer to help us with a short term project.

Requirements:
• Strong experience with React.js and Node.js
• Solid understanding of JavaScript/TypeScript
• Experience working with REST APIs and database integrations
• Ability to quickly understand an existing codebase and deliver improvements
• Good communication skills and attention to detail

The initial engagement is expected to last several weeks, with the possibility of extension based on project needs and performance.

Please share examples of relevant projects and briefly describe your experience with React.js and Node.js.

Hello,
I recently completed a Computer Science degree and I am looking for a mentor to help me become job-ready as a junior full-stack developer.
I have a good understanding of many software development concepts and I learn quickly, but I currently lack practical coding experience.
I understand concepts such as:
Frontend and backend architecture
REST APIs
Authentication (JWT, bcrypt)
Databases and MongoDB
Application flow
AI integrations
However, I am not yet comfortable coding independently. For example, I still need help with things such as:
JavaScript fundamentals in real projects
Async/await
Imports and exports
React development
Debugging
Reading and understanding larger codebases
Backend development with Node.js and Express
Building projects from scratch
My goal is to become employable as quickly as possible (within the next 2–4 months if realistic).
I am looking for someone who can teach me through practical work rather than theory. I want to understand how professional developers build applications, debug problems, structure projects, use Git, work with databases, deploy applications, and prepare for real jobs.
I would also like to learn:
React
Node.js / Express
TypeScript
SQL / PostgreSQL
Docker
Git and GitHub
Deployment
Modern full-stack development practices
I learn quickly and I am willing to put in the work. I am looking for a mentor who can create a structured learning plan and help me focus on the skills that matter most for getting a junior developer job.
Please tell me:
Your experience
How you would structure the learning process
Whether you think a 2–4 month timeline is realistic
Your hourly rate and availability
Thank you. :::

We have an existing Node.js/Express REST + GraphQL backend for a combined e-commerce and online course (LMS) store. The app is in working condition but needs targeted updates, bug fixes, and refactoring in specific areas. We are not doing a full rewrite - we need a developer who can read existing code quickly, understand the patterns already in use, and make surgical improvements.

Deliverables
- All changes delivered as a clean pull request on GitHub (or zip if preferred) with a brief summary per scope item.
- No regressions on existing endpoints - provide a Postman collection or update the existing Swagger docs to cover any modified routes.
- A short written note (can be in the PR description) explaining the blog dual-database situation and your recommendation.


Nice to Have
- Upgrade graphql from v14 to v16 and express-graphql to graphql-http (the former is deprecated).
- Add basic integration tests (Jest + Supertest) for the payment verify flow and OTP auth flow.

What We Are NOT Looking For
- A full rewrite or framework migration
- Frontend work of any kind
- Database migration to a new provider

Budget & Timeline
- Budget: Open to proposals - please provide an hourly rate or as a total fixed price.
- Timeline: Preferred within this week. If possible, you must complete this within this week. Please do not send the proposal if you cannot work on the weekend or have other ongoing projects.

We do not prioritize low prices; instead, we are willing to pay for the best quality.

**Project Title:** Build a Full-Stack E-commerce Website Using MERN Stack

**Describe what you need:**

I am looking for an experienced **MERN Stack developer** to design and develop a modern, responsive, and secure **e-commerce web application** from scratch. The website should provide a smooth shopping experience for customers and an easy-to-use admin panel for managing products, orders, and users.

### Technology Requirements

The project must be developed using the **MERN Stack**:

* **MongoDB** for the database
* **Express.js** for the backend API
* **React.js** for the frontend
* **Node.js** for the server-side application

### Required Features

#### Customer Side

* User registration and login with authentication (JWT)
* User profile management
* Browse products by categories
* Product search and filtering options
* Product details page with images, descriptions, pricing, and reviews
* Shopping cart functionality
* Wishlist feature
* Secure checkout process
* Integration with a payment gateway (please specify which gateways you have experience with)
* Order placement and order history tracking
* Email notifications for order confirmations
* Fully responsive design for desktop, tablet, and mobile devices

#### Admin Dashboard

* Secure admin authentication
* Dashboard overview with basic statistics
* Product management (add, edit, delete products)
* Category management
* Inventory/stock management
* Order management and status updates
* Customer/user management
* Review moderation
* Ability to upload and manage product images

### Additional Requirements

* Clean, well-structured, and maintainable code
* RESTful API development following best practices
* Proper error handling and input validation
* Performance optimization
* Basic SEO considerations for the frontend
* Deployment assistance and documentation
* Source code must be provided through a Git repository
* Clear comments and setup instructions for future maintenance

### Deliverables

* Complete source code for both frontend and backend
* Working deployed application
* Deployment documentation
* API documentation
* Database schema/design documentation
* Post-development support for bug fixes (please mention the duration of support you can provide)

### Freelancer Requirements

Please include the following in your proposal:

1. Links to similar MERN-based e-commerce projects you have completed.
2. Your estimated timeline for this project.
3. Your proposed budget and payment milestones.
4. The technologies, libraries, and third-party services you plan to use.
5. Your approach to testing and quality assurance.

I am looking for a developer who communicates well, meets deadlines, and can provide recommendations to improve the overall quality and usability of the platform. If you have previous experience building scalable e-commerce applications with the MERN stack, I would be interested in reviewing your portfolio.

RAG expert for legal data project. Italian speaking

I am looking for an experienced Node.js/Express developer to build a secure, high-performance backend middleware component. This server will act as an anonymization proxy between our core platform and a major LLM API (Anthropic Claude).

This is a well-defined, finite-scope backend project. A complete, granular technical specification document will be provided immediately upon signing an NDA.

Your job is strictly backend development—no UI, no frontend, and no modifications to our existing core platform.

High-Level Responsibilities

• Secure API Proxy: Build a persistent Node.js/Express server to be deployed on Railway.app.
• PII Anonymization Pipeline: Implement a server-side data-stripping pipeline to remove sensitive data and compliance-regulated information before it reaches third-party APIs.
• Secure Logging: Log metadata to a PostgreSQL database (strictly no raw or sensitive user data).
• Traffic Control: Implement request authentication, rate-limiting, and API timeout/fallback logic.

Technical Stack Requirements

• Node.js & Express (Production-grade experience)
• Railway.app (Must have experience deploying persistent server processes here)
• PostgreSQL / Database Integration
• REST API Security & Data Privacy (Solid understanding of GDPR, HIPAA, or similar data-handling standards)

Budget & Timeline

• Budget: $300 Fixed-Rate (Milestones will be set based on deliverables)
• Timeline: 1 to 2 weeks for a developer fluent in this stack.

What We Provide at Kickoff

• A comprehensive technical specification document covering endpoints, schema, and exact pipeline rules.
• Note: An ICA and NDA are strictly required before these specification documents are shared.

• - Have you built a Node.js/Express server on Railway.app that proxies authenticated requests to a third-party API?
• - Describe the project architecture briefly.

What I need built:

• Backend database to store daily game content and serve it to users
• Automated daily content reset at midnight
• User authentication via email and password
• Private league system with invite codes
• Cumulative leaderboards — daily and season long
• Push notifications or daily email digest
• Share image generator (server side)
• Scalable hosting setup

I am looking for an experienced Full Stack Web Developer
to build a complete Security Guard Management System
for my private security company.

PROJECT OVERVIEW:
A web-based admin panel to manage guards, locations,
attendance, salaries, client payments, and financial
reporting. Full project specification document is
attached please read it completely before starting.

KEY MODULES TO BUILD:
1. Login & User Management (Single Admin)
2. Guard Management (Add, Edit, Search, Transfer)
3. Guard Profiles (Personal info, Photo, Weapons, Uniforms)
4. Location Management (Rates, Tax, Advance payments)
5. Attendance System (Bulk entry, Calendar view, Reports)
6. Weapon Management
7. Salary Management (Auto-calculation from attendance)
8. Client Payment Management (Cash + Bank separately)
9. Company Expenses Tracking
10. Financial Reports & Profit/Loss
11. Complete Reporting Suite (PDF + Excel export)
12. Dashboard (Live stats + Quick access)
13. System Settings (Uniform fee, Tax rates)

TECHNICAL REQUIREMENTS:
- Web-based application (not desktop software)
- Mobile responsive design
- Secure admin login
- MySQL / PostgreSQL database
- PDF and Excel export on all reports
- Company logo/header on all printed documents

IMPORTANT NOTES:
- Salary per-day rate = Basic Salary divided by 30
- Cash and Bank payments tracked separately
- Attendance bulk entry must support date ranges
- All 13 modules must be fully functional
- Complete specification PDF is attached

Please read the attached PDF document carefully
before submitting your proposal or starting work.

Deploy an existing Node.js/Express app and configure SMS. I have a complete, working dispatching app (Node + Express + SQLite, plain-JS frontend). I need someone to:
(1) deploy it to Render or Railway with a persistent disk and HTTPS,
(2) set up a Twilio account/number and wire in the credentials so it sends automated daily texts,
(3) confirm the 6 AM scheduled texts fire reliably, and
(4) be available for small tweaks afterward. Code, README, and deploy steps are all included. Should be a few hours for someone experienced. Please share similar Node deployment work you've done.

We are seeking a skilled Full Stack Developer with strong experience in Node.js and React to work on an AI-powered web app. The ideal candidate will have a solid understanding of both front-end and back-end technologies, with the ability to integrate AI solutions seamlessly. Experience with MongoDB is a plus. The role involves developing and maintaining web applications, ensuring high performance and responsiveness.

We are looking for a proficient Full Stack Web Developer experienced in React.js, Node.js, and blockchain integration.
Your role will involve building and maintaining scalable web applications that incorporate blockchain solutions and smart contracts.
You will work closely with multidisciplinary teams to gather requirements and define project goals and deliverables.
Implement secure user authentication and authorization systems to protect application data.
Ensure applications are optimized for performance, speed, and scalability.
Write clean, efficient, and thoroughly documented code to facilitate future maintenance.
Keep up-to-date with emerging trends and advancements in blockchain technology to enhance application features.

Road map atatched of the reuirements and codebase, just check and confirm me if you could do it and your quote, no need to start work until i confirm, just give me your confirmation if you could work on it and your costing,

https://github.com/Fortune922/Fortune2026

I need a senior MERN stack developer to update an existing project urgently. The task involves ensuring the project follows the given design. It is crucial to provide a correct estimation before starting the work. The ideal candidate should have experience in React, Tailwind CSS, HTML5, JavaScript and TypeScript.

•Generation gets stuck for non-paying users
.• Generation stops when leaving the screen
• Resume book editing after leaving
• Library keeps reloading
• Fix "Write" function
• Resolve pricing confusion
• ⁠• Improve loading times •
• ⁠Image order in photo book
• ⁠ Back button
• ⁠ Lulu print-on-demand
• ⁠Page numbers
• ⁠Better reading view

•Generation gets stuck for non-paying users
.• Generation stops when leaving the screen
• Resume book editing after leaving
• Library keeps reloading
• Fix "Write" function
• Resolve pricing confusion
• ⁠• Improve loading times •
• ⁠Image order in photo book
• ⁠ Back button
• ⁠ Lulu print-on-demand
• ⁠Page numbers
• ⁠Better reading view

Read this whole post before applying. The first line of your proposal must be the word THEMIS-RTL followed by one sentence: the single hardest technical part of what's described below, and why. Proposals that skip this are deleted unread.
Individual freelancers only. Agencies, dev shops, and "teams" are automatically rejected — do not apply.
What this is
I'm building an Arabic-first legal-memo SaaS (RTL, for UAE/Saudi law firms). Lawyers draft Arabic legal memos in a Word-like editor, route them for approval with comments and tracked changes, and export filing-ready PDFs (memo + exhibits merged, with letterhead separators).
I am a non-developer founder, and I do most of the coding myself using AI tools (Claude Code). I am not hiring someone to build the whole thing. I'm hiring a senior developer to work alongside me in two modes:

Unblocker. When I hit something the AI can't get right — a gnarly bug, a hard architecture decision, something subtle that's silently broken — I hand you that specific problem and you fix it properly.
Executor. On days I can't code, I assign you scoped tasks to push the build forward, and you complete them to spec.

So I need someone who is genuinely senior — strong enough to land in an unfamiliar codebase, diagnose what's wrong, and fix it cleanly — and who is also fluent at leveraging AI and open-source code (find a solid library, customize it to our needs) rather than reinventing everything by hand. Speed and judgment matter more than writing every line from scratch.
The stack (must be strong in all of it)

Frontend: Next.js (App Router), TypeScript, Tailwind, shadcn/ui — deployed on Vercel.
Backend: Node.js, Express, Prisma, PostgreSQL. REST API, JWT auth, every record scoped by firmId.
Storage / infra: S3-compatible object storage (Cloudflare R2), Redis + BullMQ for background jobs.
The hard parts (this is what I'm really paying for):

A rich-text editor that is RTL and Arabic-first — A4 pages, caption tables, nested lists, inline citations. Likely ProseMirror/TipTap. RTL done correctly is non-trivial; most people fake it with dir="rtl" and it falls apart.
Tracked changes / suggestion mode — reviewers' edits become accept/reject suggestions tied to the live document, plus margin comments. This is the single hardest feature.
A server-side PDF pipeline: render memo → PDF, merge exhibits with auto-generated separator pages, extract a single exhibit, compress to a per-file size cap (image downsampling), and split only at exhibit boundaries when a file exceeds the cap. Tooling likely from pdf-lib / pdfcpu / qpdf / Ghostscript.
Multi-tenant data isolation — firmId enforced centrally (one Prisma/middleware layer), never hand-written per query. A user in Firm A must never reach any Firm B record.



If half of that list is unfamiliar to you, this isn't your job — and that's fine.
How we'll actually work

You'll get scoped, written tasks (often a problem statement + the relevant files + what "done" looks like). You ship a fix or a feature, explain what you changed and why, and flag anything you think I got wrong.
I want you to push back. If you see a better approach than what I propose, say so — with reasoning. I value a developer who challenges a bad idea over one who quietly builds it.
Comfort with AI-assisted development is required. You should be the kind of dev who reaches for the right open-source library, reads the actual docs, and adapts proven code — not someone who hand-rolls everything or, at the other extreme, blindly pastes AI output without understanding it.

Engagement

Hourly, on-demand. No guaranteed minimum hours. Some weeks may be a few hours of unblocking; others, a couple of focused days of assigned tasks.

Some overlap with Gulf Standard Time (Dubai, GMT+4) working hours for live handoffs is needed; you don't have to be in the region.
Long-term potential: if this works, the relationship continues well past the MVP.

To apply

Start your proposal with THEMIS-RTL + the one-sentence "hardest part" answer (see top of this post).
In 3–5 sentences, tell me about one time you dropped into an unfamiliar codebase and fixed a hard bug or made a hard call — what was broken, how you figured it out, what you did.
Link me to specific work you've done with: a rich-text editor (ProseMirror/TipTap/Slate/Quill), RTL/Arabic UI, or server-side PDF manipulation. Real repos, PRs, or live products — not a generic portfolio site.
One line on how you use AI tools in your day-to-day development.
Shortlisted candidates get a short written technical quiz, followed by a 15-minute call. Do not send a generic proposal

• What does THEMIS-RTL mean, and what's the single hardest part of this project in your view?
• Link one piece of real work involving a rich-text editor, RTL UI, or server-side PDF processing (required)
• Have you built or heavily customized a ProseMirror/TipTap (or similar) editor? Describe what you did
• Include a link to your GitHub profile and/or website

If you vibe code, do not apply. We are strictly looking for developers who can use their own brain to think & program.
I have a working Node.js/Express authentication and licensing API that I want to improve. The core functionality is already live — user auth, hardware-bound sessions, encrypted file delivery via Cloudflare R2, and a Discord bot integration. I'm looking for a developer to come in, understand the existing code-base, and make it better.

I'll share the full code-base privately. Everything is documented and the existing logic is semi-decent.

What the API does today

- App/license key management — create apps, generate keys, assign subscription tiers
- Hardware-bound user auth — users authenticate with username + password + HWID; sessions are tied to their hardware
- Encrypted file hosting — files are AES-256-GCM encrypted server-side before upload to Cloudflare R2; clients receive a one-time download ticket + per-file key; decryption happens client-side only
- Discord bot webhooks — bots receive event notifications (new login, key used, ban, etc.)
- Admin panel routes — JWT-protected management endpoints
- Runs on a Windows VPS.

What I want improved

I'm open to your suggestions after reviewing the code, but areas I have in mind are:

- Rate limiting & abuse prevention — brute-force protection on auth endpoints, session abuse detection
- Subscription/expiry enforcement — tighten how subscription tiers gate downloads and enforce expiry dates
- Logging & audit trail — structured logs for auth events, file downloads, failed attempts
- Error handling consistency — standardise error responses across all routes
- Performance — review DB query patterns, add indexes where missing, reduce round-trips on the download flow
- Security - While our current flow is pretty secure (USING HTTPS for certain endpoints), however some of it is still under HTTP & using our direct IP, we'd like to transfer everything to under CloudFlare protected domains using HTTPS or alternatively, TLS.
Make the API sit behind CF & only trust CF IP's to prevent IP spoofing attempts.
- Anything you spot — if you see something that should be done differently, I want to hear it

• Include a link to your GitHub profile and/or website
• Please list any certifications related to this project

Looking for an experienced full-stack developer to work on a web platform focused on security hardening, performance optimisation, and SEO improvements.

The project involves backend (Node.js / Express / Prisma / PostgreSQL) and frontend (Next.js 15 / React 19) work. A detailed technical audit has already been completed — you will receive a prioritised list of issues with file references, root cause analysis, and recommended fixes. No discovery work needed.

What the work covers:
• Security: fixing authentication gaps, hardening API routes, correcting middleware configuration
• Performance: eliminating N+1 database queries, optimising indexes, improving caching
• SEO: server-side rendering improvements, structured data, metadata
• Code quality: removing dead code, resolving dependency conflicts, minor refactors

Required skills:
• Strong Node.js / Express backend experience
• Next.js App Router (not Pages Router)
• Prisma ORM and PostgreSQL
• Solid understanding of web security fundamentals (auth, CORS, JWT, rate limiting)
• Ability to work from a written brief without hand-holding
• Clean, testable code — no cowboy fixes

Nice to have:
• Experience with Stripe webhooks
• Pusher / real-time features
• Cloudinary uploads
• VPS deployment

This is a fixed-scope engagement. Estimated effort is 50–100 hours depending on scope agreed. Looking for someone detail-oriented who reads the brief before asking questions.

DO NOT APPLY UNLESS YOU ARE DOING 100% OF THE WORK YOURSELF. ABSOLUTELY NO AGENCIES UNDER ANY CIRCUMSTANCES!!!

In this role you will be an integral part of an already well-established and vibrant development team! We are looking for full-time employees that are able to work in Eastern Standard Time with our team located in Toronto, Canada. Multiple meetings throughout the workday required.

What we are looking for:
- 3+ years of backend experience such as Node.js, MongoDB, Express.js
- BSc. or MSc. in Computer Science (or related field)
- Understanding of APIs (design and deployment), UI development (using Angular), UX awareness, modern charts and graphs

You fit the following criteria:
- Operate in a fast-paced environment while writing high-quality code
- Work closely with the Chief Product Officer to plan and implement new features
- Can own large features from early prototype to a polished final implementation
- Turn a design document into a technical plan, and implement it

Our Tech Stack:
- Back-end Technologies: MongoDB, Express.js, Node.js
- Front-end Technologies: Angular
- Hosting: AWS, Hostwinds, and Mongo Atlas

Our Core Development Principles:
- High-Quality: Develop systems that are flexible and abstract
- Stability: Contribute code that is stable, scalable, and reliable
- Reliability: Developers are responsible for ensuring code is bug-free
- Exploration: Approach hard problems with an inquisitive mind
- Usability: All user-facing systems provide optimal user-experience

Join us on our mission! We look forward to having you join our team!

DO NOT APPLY UNLESS YOU ARE DOING 100% OF THE WORK YOURSELF. ABSOLUTELY NO AGENCIES UNDER ANY CIRCUMSTANCES!!!

We’re looking for a skilled full-stack developer to help us build fast, scalable, and SEO-optimized web applications. The ideal candidate will be confident working with Node.js for backend development and React.js/Next.js for modern, responsive frontends. You’ll collaborate with our product and design teams to deliver clean, user-focused features, ensuring excellent performance and discoverability.

If you enjoy using modern web technologies to create seamless, high-quality user experiences, we’d love to hear from you!

• Describe your recent experience with similar projects
• Include a link to your GitHub profile and/or website
• What frameworks have you worked with?
• Describe your approach to testing and improving QA

Looking for an experienced full-stack developer to work on a web platform focused on security hardening, performance optimisation, and SEO improvements.

The project involves backend (Node.js / Express / Prisma / PostgreSQL) and frontend (Next.js 15 / React 19) work. A detailed technical audit has already been completed — you will receive a prioritised list of issues with file references, root cause analysis, and recommended fixes. No discovery work needed.

What the work covers:
• Security: fixing authentication gaps, hardening API routes, correcting middleware configuration
• Performance: eliminating N+1 database queries, optimising indexes, improving caching
• SEO: server-side rendering improvements, structured data, metadata
• Code quality: removing dead code, resolving dependency conflicts, minor refactors

Required skills:
• Strong Node.js / Express backend experience
• Next.js App Router (not Pages Router)
• Prisma ORM and PostgreSQL
• Solid understanding of web security fundamentals (auth, CORS, JWT, rate limiting)
• Ability to work from a written brief without hand-holding
• Clean, testable code — no cowboy fixes

Nice to have:
• Experience with Stripe webhooks
• Pusher / real-time features
• Cloudinary uploads
• VPS deployment

This is a fixed-scope engagement. Estimated effort is 50–100 hours depending on scope agreed. Looking for someone detail-oriented who reads the brief before asking questions.

Johnny Beirne suggested I get in touch. I've built a marketing platform in Lovable and I'm looking for an experienced Lovable/Supabase developer to review the platform, identify any bugs or structural issues, and advise on scalability before I onboard more users. Could you let me know:

Your hourly rate, availability, if you offer a technical audit/review service
An estimate for reviewing:
App structure and Supabase setup
Authentication & subscription logic
User flows & testing
Bug identification & fixes
Scalability & performance