Senior Java Software Engineer

For our client in Brussels, we are looking for an experienced Senior Full-Stack Developer to join an exciting consulting mission in the public health domain. You will play a key role in modernizing critical applications, with a strong focus on upgrading existing frameworks and ensuring future-ready architectures.

Your role

As Senior Full-Stack Developer, you will:

• Lead the migration of existing Spring Boot and Angular frameworks to their latest versions.
• Design and implement scalable microservices architectures.
• Develop and optimize secure REST APIs that support business-critical systems.
• Collaborate in an Agile/Scrum environment, using JIRA for tracking and delivery.
• Contribute to the stability and modernization of systems with direct impact on society.

Your profile

You bring:

• Expert-level Java and Full-Stack development experience.
• Proven track record in framework migrations (Spring Boot, Angular).
• Solid experience with architecture & microservices design.
• Hands-on knowledge of REST API development.
• Confirmed experience working in Agile/Scrum teams.
• Strong familiarity with JIRA.
• Language skills: French (C1) and English. (Dutch is a plus)

What we offer

• A freelance consulting mission with real societal impact.
• Based in Brussels, with a hybrid work setup (on-site + remote).
• Competitive day rate aligned with market standards.
• A challenging environment where your expertise will directly shape the success of framework migrations and modernization projects.

👉 Interested? Apply now and let’s talk.