Sebaif Muhammed U.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

You don’t just need a developer — you need someone who can turn your idea into a fast, reliable, and production-ready application. I’m a **Full Stack Developer specializing in Next.js, React, Node.js, Python, FastAPI, and AI/RAG applications**. I build modern web applications, scalable backend APIs, and AI-powered systems that connect real business data with LLMs. What I can build for you **Full Stack Web Development** * Next.js and React applications * Responsive Figma-to-Next.js development * Node.js and Express.js backend APIs * Authentication and authorization * REST APIs and third-party integrations * Real-time features such as chat, notifications, and live updates * Bug fixing, feature development, and existing project completion **Python & Backend Development** * Python backend services * FastAPI REST APIs * Asynchronous applications * PostgreSQL, MongoDB, and MySQL * Background jobs and data processing * Clean and scalable backend architecture **AI, LLM & RAG Development** * AI chatbots and AI assistants * Retrieval-Augmented Generation (RAG) applications * Document/PDF question-answering systems * LLM integrations * LangChain-based applications * Embeddings and semantic search * Vector databases with **Chroma and Qdrant** * Document ingestion and processing pipelines * AI applications connected to your existing databases and APIs **Docker & Deployment** * Dockerized applications * Docker Compose development environments * Containerized frontend and backend services * Production-ready application configuration * Deployment and troubleshooting Tech Stack **Frontend:** Next.js, React, TypeScript, JavaScript, Tailwind CSS **Backend:** Node.js, Express.js, Python, FastAPI **AI:** LLMs, RAG, LangChain, AI Chatbots, Embeddings, Semantic Search **Databases:** PostgreSQL, MongoDB, MySQL, Chroma, Qdrant **DevOps:** Docker, Docker Compose, Git, Vercel, Netlify **APIs:** REST APIs, Third-Party Integrations Why work with me? * Clean and maintainable code * Scalable architecture * Clear communication * Regular progress updates * Strong focus on performance and reliability * Ability to work with both existing projects and new applications * Practical solutions instead of unnecessary complexity Whether you need a **Next.js web application, Node.js/FastAPI backend, Dockerized system, AI chatbot, or complete RAG application**, I can help you design and build it from the ground up. Send me your project requirements, Figma design, existing codebase, or AI idea, and let's discuss how to turn it into a working product.