Huzaifa S.

AI Engineer | LLM Agents, RAG, MCP | Next.js, Node.js, TypeScript

Most AI demos fall apart the day real users show up. I build the version that survives production. I'm a Top Rated full stack developer with a 100% Job Success Score, 18 completed projects here, and 10+ years of engineering experience across fintech, streaming, and gaming. These days most of my time goes into AI products: agents with tool calling, RAG pipelines over messy real world data, and MCP integrations that wire LLMs into actual business systems. I use Claude Code and the OpenAI and Anthropic APIs every single day in my current role, building internal AI automation for a games studio. Some things I've built recently: - Rerit: a writing assistant that rephrases any text, instantly, anywhere - Smart Replies: AI generated, tone controlled replies for Google Play reviews - SchemaSync: a SaaS that turns raw user data into database schemas and working APIs - CallConvert and NatCat: my own products, designed, built and shipped solo - Unbody: a complex Stripe payment architecture (NestJS and Supabase) for an open source AI platform - Client work that grew revenue 60% and lifted client satisfaction 40% at a services company My daily stack: Next.js, React, TypeScript, Node.js (NestJS, Express), Supabase, PostgreSQL, MongoDB, Stripe, React Native and Electron for mobile and desktop, and AWS (Lambda, S3, API Gateway, EC2) with Terraform. On the AI side: OpenAI API, Anthropic Claude API, LangChain, LangGraph, embeddings and vector databases (Pinecone, pgvector), n8n automations, and MCP servers. How I work: before writing code I map the product goal, data model, auth, payment flow and deployment, then ship in small pieces you can test early. I've led teams of 5+ developers, so I'm comfortable owning a product end to end, not just closing tickets. You get clear updates, realistic timelines, and no surprises. If you're building an AI product or a SaaS, or you have one that's stuck, send me the details and your current stack. I'll reply within 24 hours with a concrete plan and an honest estimate.