Fahim W.

What breaks a product first? What users see, or what nobody thought would matter? I've spent 3+ years building full-stack SaaS products with Next.js, NestJS and TypeScript, with one rule: if it can make the product better or break it, I care about it. That means the UI, backend, APIs, databases, AI, security, infrastructure — and how all of them work together as the product grows. Top Rated on Upwork with 100% JSS. Most of my work is on products where the whole stack has to work together. Sometimes that's building something from scratch. Sometimes it's taking over an existing codebase, fixing what isn't working, or adding the next major piece without making everything else harder to maintain. I work across: - Frontend - Next.js, React, TypeScript, Tailwind - Backend - NestJS, Node.js, Express.js, Go, Python - Data - PostgreSQL, MySQL, MongoDB, Redis - AI - RAG, LLM integrations, embeddings, vector search and AI-powered workflows - APIs & integrations - REST APIs, payments, email, file uploads and third-party services - Security - authentication, authorization, validation and access control - Infrastructure - Docker, CI/CD, deployment, background jobs and queues I build frontends that stick in people's heads and engineer the stuff underneath so well that complicated features feel almost unfairly simple, the kind that makes someone go, "Wait, you can actually do that?" Obviously, clean architecture matters, but making things complicated just for the sake of it doesn't. The best solution is usually the simplest one that still holds up as the product grows... without slow queries, jobs running twice, loose permissions, or integrations quietly breaking later. I also run SCOPERR, so if what we're building grows past what makes sense for one developer, I can scale the team around it without handing the project off somewhere else. You don't need every technical detail figured out. Tell me what you're trying to build, I'll help work out the best way to make it happen, and I'll tell you if there's a simpler way. Let's build it right the first time.