Middle Backend Developer

Engeneering remote/office

4IRE is a leading Ukrainian-Swedish IT consulting company that focuses on Blockchain, DeFi, and Green Finance empowering businesses to take advantage of the latest technologies. Since 2010, we have become a long-term strategic partner helping with a full range of services required for launching innovative Blockchain and DeFi solutions.


  •  3+ years in Software Development;
  • Expert in JavaScript/TypeScript;
  • 2+ years experience in NodeJS (Express, Nest);
  • Solid understanding and experience with Redis, RabbitMQ, PostgreSQL;
  • Hands-on experience of microservices development;
  • Problem solver and quick learner;
  • Upper-intermediate to fluent English.

Will be a plus:

  • 1+ Experience with Ethereum-based blockchains, integration with smart contracts;
  • A degree in Computer Science or Software Engineering.

What we expect

  • Develop microservices with Node.js/Nest.js, PostgreSQL, RabbitMQ;
  • Provide unit tests;
  • Work in team with frontend and blockchain developers;
  • Provide research and development of 3rd party integrations – document signing, KYC/KYB/AML payment gateways, banks, CRM systems, logistic platforms.

We offer

  • Competitive salary depending on the background;
  • The ability to grow professionally and develop your career;
  • Great atmosphere, with the vibe and energy of a high-growth tech company;
  • Experienced colleagues who are ready to share knowledge;
  • Smooth adaptation period: 2 months;
  • Long-term employment;
  • Friendly team (we are a company with a family atmosphere).