About the role We are looking for a Senior Java Developer to join a major digital transformation program. You will contribute to the modernization of a critical legacy platform into a cloud‑native microservices architecture running on Kubernetes, using API‑first and event‑driven principles.
Responsibilities Design, develop, and maintain robust and scalable microservices.
Contribute to the progressive migration from a monolithic legacy system to a cloud‑native architecture.
Develop and maintain secure and high‑performance REST APIs.
Participate in DevOps practices and CI/CD pipeline implementation.
Collaborate closely with architects, DevOps engineers, and business teams.
Contribute to technical decisions and architecture discussions.
Ensure code quality, maintainability, and best development practices.
Support observability, monitoring, and application performance initiatives.
Participate actively in Agile/Scrum ceremonies.
Mandatory skills Strong experience in backend Java development.
Expertise with Spring Boot and microservices architecture.
Solid hands‑on experience with Kubernetes.
Proven experience in DevOps and CI/CD environments.
Excellent knowledge of REST APIs.
Strong SQL and DB2 experience.
Good Linux and Git knowledge.
Experience working in Agile/Scrum environments.
Ability to work on complex, mission‑critical platforms.
Nice‑to‑have skills Python knowledge.
Experience with legacy modernization programs.
Familiarity with event‑driven architectures.
Previous experience in public sector or large enterprise environments.
Languages Professional English required.
French or Dutch is considered an asset.
Contract details Contract type: Freelance.
Daily rate: €480/day (0% commission).
Location: Hybrid.
Urgency: Immediate.
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