#CV #Backend #NodeJS #TypeScript #NestJS #iGaming #Fintech #Payments #Remote #Relocation

Backend engineer for money-critical systems — wallets, payment flows, provider integrations

Full-Stack Developer — Backend-Focused · 4+ years · Node.js / TypeScript

What I build on a multi-brand iGaming platform (100K+ transactions a day):
• Wallet money path: bets, wins, rollbacks, deposits/withdrawals, fund holds — row-level locking, idempotent provider callbacks
• Sportsbook layer: one internal contract over several providers, switchable per brand
• Game provider integrations: signature checks, timeouts, deterministic idempotency keys
• RabbitMQ event backbone between wallet, bonus and game services
• −60% response time on hot endpoints (CQRS + Redis), −30% infra cost (K8s right-sizing)

Stack: NestJS, PostgreSQL, Redis, RabbitMQ, Docker, Kubernetes

Open to backend / full-stack roles in iGaming, fintech, payments. Remote or relocation.

Telegram: @kerim_0x
Email: [email protected]