Middle Front-end Developer (React)

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/HTML/CSS;
  • 2+ years of experience in frontend development with React.js / Next.js / Fastify;
  • Experience with material UI, MobX, atom;
  • Experience with QA processes and unit tests;
  • Knowledge of RestAPI, JWT;
  • Basic understanding of SQL;
  • Problem solver and quick learner;
  • Good communication skills;
  • Upper-intermediate to fluent English.

What we expect

  • 1+ Experience with Ethereum-based blockchains, integration with smart contracts;
  • Understanding of microservices architecture concepts and best practices;
  • Experience with Docker, Docker-Compose;
  • A degree in Computer Science or Software engineering.


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).