Services
I work end-to-end — architecture, backend, web, iOS & Android, AI and deployment — usually as the primary or sole engineer. Pick what you need, or bring the whole product.
Hire Rafay Khan, a full-stack developer who builds production web platforms with Next.js, React, Node.js and PostgreSQL — from architecture to launch and beyond.
Rafay Khan builds cross-platform iOS and Android apps with React Native and Expo — from first screen to App Store and Play Store release.
Rafay Khan builds AI chatbots, voice agents and RAG systems that qualify leads, book appointments and answer customers — connected to your real data and CRM.
Rafay Khan automates sales, operations and back-office workflows with n8n, Zapier, Make, HubSpot, GoHighLevel and Odoo — so your team stops doing data entry.
Rafay Khan sets up deployment pipelines, containers and cloud infrastructure on AWS, GCP and Vercel so your releases are fast, safe and repeatable.
02 — Client Proof
Sole Full-Stack Engineer
Built the entire logistics platform solo: Admin Dispatch Portal, Customer Portal, and React Native Driver app with live WebSocket GPS tracking and Supabase RLS.
Lead Mobile Engineer
Owned the full mobile lifecycle from scratch using React Native, Expo, and TypeScript — proximity discovery, personalized feeds, push notifications, and EAS store releases.
AI & Automation Engineer
Replaced a high-drop-off multi-step clinical form with Ellie, an empathetic RAG intake assistant that answers parent questions and syncs qualified families straight into the CRM.
Lead Systems Engineer
Designed an offline-first SaaS ticket validation platform using Ed25519 digital signatures and SHA-256 hash chaining on a Fastify backend to eliminate ticket fraud without internet.
50+ freelance & contract deliveries across 3 continents
Verify work history, client reviews, and open-source repositories on my public profiles.
03 — What's next
Tell me what you're building. No sales team, no hand-offs — just the engineer who'll build it.
Rafay KhanYou'll talk to me directly