Lead Java Developer – Spring Boot & React

Our client, a prominent organization in the public sector, is looking for a Lead Java Developer. The role involves driving the development of complex applications while providing technical leadership and coaching to a dedicated development team.

Responsibilities: Lead and coach a development team to ensure high-quality software delivery and professional growth. Execute complex programming tasks including coding, testing, and debugging Java-based applications. Implement and integrate REST APIs with a focus on performance and reliability. Take a leading role in Agile development processes and project ceremonies. Manage database interactions and data integrity using SQL, Postgres, and DB2.

Requirements: 5+ years experience in backend development using Java, J2EE, and Spring Boot. 5+ years experience with the design and implementation of REST APIs. Experience in frontend development using React and TypeScript. Experience with database management systems including SQL, Postgres, and DB2. Proven experience in leading a development team and coaching individual team members. Possession of a certification or equivalent expertise in Java/J2EE programming.

You possess extensive knowledge of Agile development methodologies and can take a lead role within them. You are fluent in Dutch with a C2 level of proficiency.

Nice to Haves: Experience with CI/CD automation using Bamboo. Working knowledge of Atlassian Tools such as Jira and Confluence. Familiarity with Helm charts for application deployment. Experience developing applications that incorporate geographic data. Previous professional experience within the public sector.

Offer: Start date: 05/10/2026.

Duration: until 15/07/2027.

Work regime: Full-time, 4/5th might be possible.

Location: Mechelen.

Contract: open to both permanent employees and freelancers.