Java Backend Developer

Uni Systems

📍 Brussels, Brussels, Belgium

Full time Computer Occupations Posted February 25, 2026

Job Description

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Java Backend Developer to join our UniQue team in Brussels.

What will you be doing in this role?

  • Development of back-end services.
  • Design and develop REST APIs.
  • Close collaboration with mobile app developers to extend mobile application functionality.
  • Close collaboration with other backend teams on service integration.
  • Implement core business logic.
  • Troubleshooting problems and identifying areas for improvement.
  • Writing unit and integration tests.
  • Understanding and implementation of security and data protection.
  • Writing clean and functional code.

Requirements

What will you be bringing to the team?