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