Senior Java Technical Lead
Brussels-Capital
Digital - Development
Work experience: 5-7
Reference number: 91765
We are looking for an experienced Technical Lead to strengthen the team that builds and maintains real-time systems used to monitor and manage national railway traffic. You will work on a suite of mission-critical Java applications used daily in multiple operational control rooms.
This role combines hands-on engineering with technical leadership in a modern, agile environment.
What you’ll do
- Design and develop complex, real-time Java applications used in 24/7 operational environments.
- Coach and support engineers through strong technical expertise and guidance.
- Ensure performance, reliability and robustness of applications in production.
- Build clean, maintainable, reusable code following engineering best practices.
- Contribute to architecture and design discussions for traffic management systems.
- Improve development processes, tooling and code quality within the team.
- Keep technical and functional documentation accurate and up to date.
- After onboarding, take part in a 24/7 on-call rotation for supported applications.
What are we looking for?
- You have 5–10 years of experience as a Senior Java Full-Stack Engineer working on business-critical applications.
- You hold a Master’s degree in Computer Science or equivalent experience.
- You apply strong hands-on experience with Java 17 and have worked with Java 21 in at least one concrete project or POC.
- You have deep experience with Tibco RDV, Eclipse RCP, Hazelcast, and distributed or event-driven architectures.
- You work confidently with Docker, Kubernetes and OpenShift in containerised environments.
- You manage CI/CD pipelines using Jenkins or GitLab, covering build, test and deploy activities.
- You design solutions with high availability, clustering and disaster recovery in mind.
- You collaborate effectively in Agile/Scrum environments and participate actively in delivery routines.
- You are fluent in Dutch OR French, and have a very good level of English.
- Scrum Master certification
- Java Developer certification
- Experience with Xray or test management tools
- Experience in real-time or mission-critical environments
What do we offer?
Location: Brussels (hybrid)
Terms: Permanent or Freelance
Duration: 01/01/2026 – 31/12/2030
Workload: Full-time, with 24/7 on-call rotation after training
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Gil Van Vaerenbergh
HR & Talent Consultant Digital
+32492746814
