> _
Backend Developer / Microservices
Building scalable distributed systems
and microservice architectures.
> _
Backend Developer / Microservices
Building scalable distributed systems
and microservice architectures.
REST API for order processing and menu management. Designed multi-tenant DB schema for product catalog, modifiers, and order history. Built order status flow across roles (operator → kitchen → courier). Implemented revenue dashboards with avg check and hourly load analytics. Optimized heavy analytics queries, set up Docker deployment for onboarding new outlets.
Backend for automated VPN subscription sales across 3 leased servers. Users purchase via Telegram bot, instantly receive xray/VLESS configs. Integrated ЮKassa with idempotent webhook handling for auto-renewal and refunds. Celery workers handle access provisioning and scheduled server health checks. Bot routes users to least-loaded server automatically.
Internal platform for SMB: employee registry, task distribution across departments, execution tracking via web and Telegram Mini App. Built REST API and task management business logic, multi-tenant DB schema (company → departments → employees). Implemented roles & permissions, Telegram bot + Mini App integration, Celery reminders and periodic reports.