Senior Full Stack Developer (Node.js/TypeScript)
Twelvedevs is an outsourcing company in the market since 2012, with a staff of over 90. We specialize in logistics, e-co · зарплата не указана · локация не указана · Telegram · опубликовано 3 июня 2026 г.
Описание вакансии
Project: Last-mile delivery (USA). High-load logistics platform, US customers.
Key responsibilities: development and architecture of high-load systems, performance optimization, code review, and technical leadership in a small team (approximately 5 people).
Requirements:
5+ years of commercial experience
Deep expertise in Node.js/TypeScript
Experience designing microservice architectures
Understanding of high-load development principles
B2+ English
Technologies (updated stack):
Backend: Node.js, TypeScript (ESM everywhere), 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
Experience with queues (RabbitMQ, Kafka, BullMQ), team leadership experience, and use of AI tools (Cursor, Copilot, Claude Code).
About the
Experience with Fastify (yes/no; if not, are you ready to learn quickly?)
Experience with MySQL and Knex
Are you familiar with TypeBox and Pino?
What is your backend/frontend balance over your career?
Sales expectations in USD.