Usman K.

I build AI-powered SaaS products and MVPs for founders with Next.js, React, Node.js, Supabase and OpenAI/Claude. One senior engineer from database design to deployment, so you don't have to coordinate designers, frontend and backend. I use Claude Code, Codex and Cursor daily to ship fast, and I review all AI-generated code by hand so you don't inherit technical debt. WHAT I BUILD ▸ AI SaaS MVPs: auth, Stripe billing, dashboards, ready for real users ▸ AI features inside your product: LLM chat, RAG / document Q&A, AI agents, voice agents (VAPI, Twilio, ElevenLabs), n8n automation ▸ Multi-tenant SaaS with role-based access and Supabase RLS ▸ Real-time features: live data, chat, collaboration (WebSockets, WebRTC, Supabase Realtime) ▸ Shopify + Next.js/Node.js: custom Stores, headless storefronts, API integrations ▸ Finish and fix: apps started in Lovable, Bolt, Replit or Base44, or left half-built by a previous developer ▸ Third-party API integrations and payments (Stripe, Stripe Connect, PayPal, Razorpay) SELECTED WORK - Medical AI platform: AI doctor consultations and lab analysis for 500K+ patients, HIPAA and SOC2 compliant - AI voice receptionist: handles inbound calls, 1M+ interactions a month, built on VAPI and Twilio - AI trading platform: 10K+ real-time sentiment signals a day for crypto and equity traders - Legal SaaS: AI document handling and workflow management for law firms - Mobile apps (iOS and Android): finance tracker with receipt OCR, route planning for delivery drivers, and medical appointment booking, all live in the stores - E-commerce: custom Shopify store for a luxury watch and jewelry brand STACK Next.js · React · TypeScript · Tailwind CSS · Node.js · Nest.js · Supabase · Firebase . PostgreSQL · MongoDB · OpenAI · Claude · LangChain · RAG · Stripe · AWS · Vercel · Docker · n8n · Sendgrid . Shopify HOW I WORK → Written scope and milestones before I start → Weekly demo plus a short Loom or written update → 4-hour overlap with US/EU time zones → Clean, documented code that you own Industries: Healthcare, Fintech, SaaS, EdTech, E-commerce, Real Estate, Sports Send me your idea or your half-built app and I'll reply with a clear plan. I also offer a free 15-minute architecture review to check we're a fit. Usman