Abdul Rehman S.

I build production ready AI SaaS and full stack applications using Next.js, Node.js, TypeScript, Python/FastAPI, OpenAI, and Claude. I help startups, SaaS companies, agencies, and product teams turn ideas into reliable production software. I’m a Top Rated Plus Full Stack Developer with 9+ years of experience and 2,200+ Upwork hours. I work across the complete product lifecycle, including frontend, backend, databases, APIs, AI integration, authentication, billing, cloud deployment, and ongoing product development. 𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐇𝐄𝐋𝐏 𝐘𝐎𝐔 𝐁𝐔𝐈𝐋𝐃 𝐀𝐈 𝐒𝐀𝐀𝐒 𝐀𝐈 𝐀𝐏𝐏𝐋𝐈𝐂𝐀𝐓𝐈𝐎𝐍𝐒 I build AI powered SaaS platforms, AI assistants, RAG applications, AI agents, intelligent dashboards, document based AI systems, and LLM powered product features. My typical AI SaaS stack includes Next.js, React, Node.js, TypeScript, Python, FastAPI, OpenAI, Claude, PostgreSQL, Supabase, and AWS. 𝐅𝐔𝐋𝐋 𝐒𝐓𝐀𝐂𝐊 𝐒𝐀𝐀𝐒 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 I develop complete SaaS products from frontend to production infrastructure. This includes multi tenant SaaS architecture, authentication, role based access control, admin panels, dashboards, Stripe subscriptions and billing, PostgreSQL and Supabase, REST APIs, API integration, third party integrations, analytics, reporting, and production deployment. 𝐀𝐈 𝐈𝐍𝐓𝐄𝐆𝐑𝐀𝐓𝐈𝐎𝐍 Already have an existing SaaS or web application? I can integrate OpenAI, Claude, AI assistants, AI agents, tool calling, RAG, document search, structured AI outputs, intelligent workflows, and third party AI APIs directly into your existing product and business logic. The goal is practical AI integration that improves the product without forcing an unnecessary rebuild. 𝐄𝐗𝐈𝐒𝐓𝐈𝐍𝐆 𝐒𝐀𝐀𝐒 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 𝐒𝐂𝐀𝐋𝐈𝐍𝐆 I also work with existing SaaS applications that need new features, complex bug fixes, backend improvements, API integrations, database optimization, Supabase or PostgreSQL work, performance improvements, architecture updates, technical debt reduction, or long term engineering support. I can join an existing engineering team, take ownership of a specific product area, or independently deliver features from requirements through production. 𝐖𝐎𝐑𝐊𝐈𝐍𝐆 𝐖𝐈𝐓𝐇 𝐒𝐓𝐀𝐑𝐓𝐔𝐏𝐒 𝐀𝐆𝐄𝐍𝐂𝐈𝐄𝐒 𝐏𝐑𝐎𝐃𝐔𝐂𝐓 𝐓𝐄𝐀𝐌𝐒 I work with early stage startups, growing SaaS companies, software agencies, founders, CTOs, and established product teams. I’m available for full time, part time, long term, dedicated, contract based, and milestone based development. I can also support agencies that need additional engineering capacity, white label development, or a senior developer who can work directly inside an existing delivery team. I have experience working with USA and UK clients and distributed teams, and I can align my working schedule with US business hours when required 𝐁𝐀𝐂𝐊𝐄𝐍𝐃 𝐀𝐏𝐈𝐒 𝐈𝐍𝐓𝐄𝐆𝐑𝐀𝐓𝐈𝐎𝐍𝐒 I build backend services and APIs using Node.js, NestJS, Python, FastAPI, Django, and Flask. My integration experience includes Stripe, Supabase, Firebase, REST APIs, webhooks, authentication providers, OpenAI, Claude, external SaaS platforms, and third party business systems. 𝐂𝐎𝐑𝐄 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐘 𝐒𝐓𝐀𝐂𝐊 - Frontend: Next.js, React, TypeScript, JavaScript - Backend: Node.js, NestJS, Python, FastAPI, Django, Flask - Databases: PostgreSQL, Supabase, MongoDB, Redis - AI: OpenAI API, Claude, AI Agents, RAG, LLM Integration, AI App Development - Cloud & DevOps: AWS, Docker, CI/CD, Vercel, cloud deployment 𝐖𝐇𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐖𝐎𝐑𝐊 𝐖𝐈𝐓𝐇 𝐌𝐄 I take ownership of the complete product rather than treating frontend, backend, AI, database, and infrastructure as separate problems. For non technical founders, you can explain the business problem in simple terms and I’ll translate it into a practical technical solution without unnecessary complexity. For technical teams, I can work inside an existing architecture, follow established engineering processes, collaborate with your developers, and take ownership of production features. You can bring me in to build an AI SaaS MVP, develop a new full stack SaaS product, scale an existing platform, integrate AI into your current application, strengthen an existing engineering team, or provide ongoing long term product development. Send me a message with what you’re building and I’ll help you determine the most practical technical approach.