Senior Java/Kubernetes Developer – Digital Transformation

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.

This initiative combines technical innovation with real business impact, offering a modern agile environment, complex engineering challenges, and collaboration with highly skilled teams.

Your responsibilities

As a Senior Developer, you will play a key role in the design, development, and evolution of the new platform.

Main 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

Technical environment

Java • Spring Boot • Kubernetes • REST APIs • CI/CD • DevOps • DB2 • SQL • ELK Stack • Linux • Git • Python • JSON • UML • Atlassian Suite • IntelliJ • VS Code

Profile required

We are looking for a senior consultant capable of evolving in a complex and demanding technical environment.

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