Cosmolot

Backend (Node.js) Developer

We are a Ukrainian product company developing a growing gaming platform and are looking for a Backend (Node.js) Developer to join our team.

Requirements

  • 4+ years of hands-on experience with Node.js
  • Experience working with MySQL
  • Hands-on experience with Kafka
  • Understanding of building scalable, high-performance backend services
  • Experience writing clean, testable, and maintainable code
  • English level B1 or higher



Responsibilities

  • Develop reusable, testable, and efficient backend code
  • Design and build low-latency, highly available, and high-performance services
  • Implement data security and protection mechanisms
  • Integrate data storage solutions (databases, key-value storage, etc.)
  • Collaborate with DevOps on application deployment across environments
  • Improve and unify backend services across the product



Nice to Have

  • Experience with Redis
  • Experience with CI/CD pipelines (GitLab is a plus)
  • Experience with Fastify
  • Experience with Sequelize



What We Offer

  • Work in a strong product team
  • Flexible working hours
  • Medical insurance
  • Sports compensation
  • Psychological support
  • Free language classes (English, Spanish, German)
  • 18 paid vacation days + paid sick leave
  • Team buildings and corporate events
  • All necessary equipment for comfortable work

Required skills experience

Node.js 4 years

Required languages

English B1 - Intermediate
Ukrainian Native
Published 27 February
81 views
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15 applications
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