Muhammad Usman Fazal — full-stack engineer focused on latency-sensitive queries, real-time systems, and the quiet infrastructure that keeps products running. Currently shipping at InLights Solutions from Islamabad.
I build production systems end-to-end — the backend architecture, the frontend that uses it, and the infrastructure underneath.
My work sits where performance engineering meets payments and real-time systems.
Most of what I ship is quiet — query profiling, vector indexing, webhook reliability, the kind of things users only notice when they break. I care about response times that feel instant, deployments that don't wake anyone up, and interfaces that stay out of the way of the work.
Production-ready cross-platform ride-hailing app with real-time matching, tracking, and a complete wallet — Stripe payouts, refunds, and tips included.
A curated location-scouting platform for film, photography and private events. Built AI-driven image retrieval with pgvector embeddings, cutting search and page-load times from ~25s to ~3s.
Two-sided marketplace with real-time availability and location matching. Built the booking flow, the matching engine, and the EC2 infrastructure behind it.
Serverless transit API on AWS Lambda coordinating drivers, passengers, and multi-city sessions — with MoMo subscription billing and OAuth/OTP auth.
Custom canvas editor converting images to SVG-based dot art, with a Stripe-powered fulfillment flow and a social-commerce commission system on top.