I build backend systems that hold up under pressure.

C++17 chess engine from scratch. Bitboards, iterative deepening alpha-beta, Zobrist transposition table. Cut depth-6 search from 3.28M to 45K nodes, about 98% fewer across optimization passes.

Elo-based head-to-head movie ranking with dynamic K-factors and weighted pairing. Atomic vote transactions with SELECT FOR UPDATE in Postgres.

Real-time collaborative music playlist. Socket.IO for live updates, Redis caching, k6 load-tested locally at around 500 req/s.