Mubeen A.

🏆 Top Rated Plus | 100% Job Success | Free Consultation | Invite Me & I’ll Schedule a Call ➤ MERN Stack Developer | Full Stack Developer | React.js Developer | Next.js Developer ➤ React.js | Next.js | Node.js | ExpressJS | MongoDB | TypeScript ➤ SaaS Development | MVP Development | Dashboards | Membership Platforms | Booking Systems ➤ Stripe Payments | REST API | API Integration | Supabase | PostgreSQL ➤ AI-Assisted Development | OpenAI API | Claude API | RAG Integration ➤ Vercel | AWS | Docker | GitHub | CI/CD 👋 Hi, I’m Mubeen. I’m a MERN Stack Developer and Full Stack Developer with strong experience in React.js Next.js Node.js and TypeScript. I build SaaS applications, dashboards, customer portals, membership platforms, booking systems and custom web applications for startups, founders and agencies. I can handle both the frontend and backend, so clients do not need to manage multiple developers for one product. My work usually includes React.js and Next.js development, Node.js APIs, MongoDB or PostgreSQL databases, Stripe payments, authentication, third party integrations and deployment. I also work on existing applications that need to be finished, fixed or improved. If a previous developer left the project incomplete or the codebase has become difficult to maintain, I can review what is already there, keep the parts that work and build from that instead of starting over. My main stack includes React.js, Next.js, Node.js, ExpressJS, TypeScript, MongoDB, PostgreSQL, Supabase and Tailwind CSS. I also work with Stripe, REST APIs, OpenAI, Claude, Vercel, AWS and Docker. 🛠️ WHAT I CAN HELP YOU BUILD • MERN Stack web application development • React.js web application development • Next.js SaaS application development • Full Stack web development • Node.js backend development • SaaS MVP development • Admin dashboards and customer portals • Authentication and role based access • Stripe subscriptions and payments • REST API development • MongoDB and PostgreSQL development • Supabase development • Third party API integration • OpenAI API and Claude API integration • Bug fixing and application rescue • Refactoring and performance improvements • Vercel AWS and Docker deployment 🏆 REAL UPWORK EXPERIENCE One of my strongest long-term projects started as a Laravel dashboard contract at $18/hour. As the scope and trust grew, the client increased my rate to $30, then $35, and finally $60/hour on the same engagement. I have also worked on long-running React development, Next.js SEO-focused website builds, React + Supabase applications, MERN products, Stripe-powered booking platforms, API integrations, and full-stack SaaS applications using Next.js, Node.js, and MongoDB. ⚙️ HOW I WORK 1. Review the product, codebase, requirements, and business goal before recommending a solution. 2. Break the work into clear, testable deliverables instead of vague development tasks. 3. Build with maintainable TypeScript / JavaScript, practical architecture, and small reviewable changes. 4. Test complete user flows, edge cases, API failures, responsive behavior, and regression risk. 5. Deploy to Vercel, AWS, Docker, or the infrastructure that fits the product. 6. Leave the codebase easier to understand than I found it. 💻 CORE STACK Frontend: React, Next.js, TypeScript, JavaScript, Tailwind CSS Backend: Node.js, Express, Laravel, PHP, Python / FastAPI when required Data: PostgreSQL, MongoDB, Supabase, MySQL, Redis Payments: Stripe subscriptions, checkout, billing, webhooks, PayPal AI: OpenAI API, Claude API, RAG, embeddings, structured output, tool calling Infrastructure: Vercel, AWS, Docker, GitHub, CI/CD 📩 LET'S TALK Send me a short description of what you are building, what is currently blocked, and your target date. I can review the scope and tell you the cleanest way to move forward - including when a smaller solution is better than a rebuild.