Full-Stack Freelance Engineer Client Solutions
I engineered an inventory management platform using an ACID double-entry ledger and PostgreSQL row-level locking, eliminating race conditions and reducing monthly reconciliation time from two days to four hours. I also built ClinicPro, a clinic management system with optimistic-concurrency appointment booking and optimized composite B-tree indexes for sub-millisecond search across more than 1,000 patient records, contributing to a 20% increase in attendance.
I architected an authoritative multiplayer Ludo engine using Node.js WebSockets and Redis Pub/Sub, including atomic Lua-based matchmaking and a 60-second disconnect recovery period. I also developed CloneTree, a creator bio-link platform with Next.js 16, React 19, and Tailwind CSS, implementing dynamic edge Open Graph cards and bundle-splitting optimizations that achieved Lighthouse scores above 98.