Lead Backend Engineer (Node.js)
Core
Lead/Senior Backend Engineer responsible for architecture, stability, and high-load real-time services in a B2C iGaming product.
Role type
Senior hands-on IC backend engineer with team leadership
Builds
Real-time B2C iGaming products with high transaction volumes
Domain
iGaming, fintech, high-load distributed systems
Deliverable
production ML models | product features
Required skills
Node.js, TypeScript, PostgreSQL, microservices, payment processing, high-load systems, AI tools (Claude Code, Cursor, Copilot)
Preferred skills
AWS (RDS, S3, IAM), Cloudflare, WebSockets, ClickHouse, LLM/agent loop/RAG development
Technologies
Node.js, TypeScript, PostgreSQL, Kubernetes, AWS, Cloudflare, ClickHouse
Responsibilities
Define backend architecture and ensure service stability, write complex code and perform refactoring, conduct code reviews and set coding standards, decompose tasks with PO/PM, ensure reliability of financial flows (wallets, payments, transactions), optimize performance (caching, queues, scaling), manage incident response and on-call, document services and APIs, mentor developers, interact with FE/QA/DevOps/data teams
Seniority
Senior, hands-on IC with leadership