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Brussels - Market conform Contract Posted by: Base 3 Posted: Monday, 26 January 2026
 
 
Applicants must be eligible to work in the specified location

Note:

  • Candidates should be based in Belgium or France and 8 days a month on site is mandatory (preferable at the Brussels office)
  • The client is investing to modernise its applications for running in a cloud-ready OpenShift-managed Kubernetes container platform.
  • The technology is both Mainframe and Java based and uses Event Hub technology (such as Kafka) for integration between the new services and Back End systems :They already have a considerable, high quality stack from which they can leverage and grow.

Senior Java Software Engineer - Crucial Candidate Traits:

The successful candidate will have proven solutions design and development skills and experience alongside validated strong systems development experience at all stages of the software delivery lifecycle.

?Required Technical Skills:

  • Strong systems development experience at all stages of systems development covering design, development, testing, live implementation and post implementation support
  • Strong hands-on Object-Oriented Design skills
  • Strong core Java programming skills
  • Experience of developing services/micro-services in Java
  • Experience of developing containerised services using Docker and Kubernetes
  • Hands-on Spring Boot skills
  • Experience of developing and deploying on Unix or Linux
  • Hands-on experience of using the Kafka ecosystem
  • Experience of profiling and performance tuning
  • Experience of Behaviour-Driven and Test-Driven development principles and skills
Brussels, Belgium
IT
6 months
ASAP
Market conform
Base 3
Recruitment Base 3 
JS-B3-1794
26/01/2026 10:35:21
About Base 3

Since 1998 Base 3 has empowered organisation’s IT performance through smart and honest sourcing solutions.


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