Backend engineer with 5 years of experience in high-load distributed systems.
- Tech Lead for a middleware platform: 3 delivery services, 4 countries, 500+ restaurants, 5,000+ markets, millions of daily requests.
- Built Telegram & Viber bots: 80,000+ monthly users, 480,000+ subscribers.
- Financial transaction processing: double-entry accounting, async pipelines, PostgreSQL optimization.
- Backend: Erlang/OTP, Elixir, Node.js, JavaScript, TypeScript
- Databases: PostgreSQL, Redis, MongoDB - Message Queues: RabbitMQ, Kafka (concepts)
- Cloud & Infra: AWS (Lambda, S3, API Gateway), Docker, Linux
- APIs: REST, webhooks, third-party integrations (payment, delivery, messenger APIs)
- Bots: Telegram, Viber, WhatsApp, Slack, AI Bots, Widgets - Other: Git, HTML/CSS