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Grade
Senior
Experience
from 7 years
Work Format
Remote
English Level
B2 - Upper-Intermediate
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Requirements: 7+ years of commercial experience with a backend focus. Deep expertise in Node.js/TypeScript. Experience in designing microservice architectures. Understanding of high-load development principles. Use of AI tools (Cursor, Copilot, Claude Code). English B2. Stack: Backend: Node.js, TypeScript, Fastify 5 (three services: auth, backend, RO), Express 5 + Socket.IO (chat server). Databases: MySQL (knex + mysql2 for all services except the chat server). Validation: TypeBox. Logging: Pino. Frontend: React + Vite. Tests: Jest. Infrastructure: Docker (each service has its own Dockerfile), ESLint 9. A plus would be: experience with message queues (RabbitMQ, Kafka, BullMQ), team lead experience.
**Location:**📍 Poland, Belarus.
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