asylkhaaan

Project: Telegram-integrated crypto platform offering spot trading, P2P exchange, checks, invoices, and custodial wallet functionality. Responsibilities and Achievements: — Built a P2P exchange microservice from scratch: designed the API, implemented offer creation, escrow logic, deal execution, and dispute resolution flow. — Added support for Bitcoin and Solana: implemented adapters, balance sync, and transaction handling, enabling $BTC and $SOL usage in checks, subscriptions, and fires inside the Telegram bot. — Ensured system stability under peak loads up to 3000 RPS during traffic spikes: introduced caching, fixed bottlenecks, and reduced DB load. — Added Telegram Stars support in sending commands: implemented Stars transactions, balance display, and fee handling. — Also worked on feature optimization, test coverage, cache improvements, and logging in high-load components. — Set up PostgreSQL-to-ClickHouse replication for analytics; handled event serialization via Kafka. — Used Redis for caching, sessions, OTP codes, and temporary user data storage. — Performed performance profiling with pprof and flamegraphs to eliminate hot spots and increase throughput. — Maintained Telegram bot integration: command handling, notifications, and backend API logic management.