PlayZeet

Founding engineer on a peer-to-peer, group, and novelty sports-betting platform. Owned frontend and backend end to end: bet-matching engine (lay bets, brave-take applicability, currency-equivalence logic), a pari-mutuel payout formula for group bets, a scheduled settlement job, JWT session management with multi-layer expiry detection, and a Puppeteer-based SSR/SEO layer for the React SPA. Integrated crypto (NOWPayments) and card (Flutterwave) deposits with BullMQ reconciliation.