Senior Java Software Engineer

We’re looking for an experienced Senior Java Engineer to join a complex enterprise technology environment in Brussels. This is not a standard Java development position. You’ll work on a highly technical modernisation initiative exploring how modern Java and containerised applications can integrate with existing mainframe infrastructure.

What will be your role?

• Designing and developing solutions using Java & Spring Boot
• Working with containerised Java workloads and enterprise platforms
• Integrating modern REST APIs with existing mainframe systems
• Contributing to Java/mainframe modernisation initiatives
• Evaluating performance, security, monitoring and operational requirements
• Working across application, platform and infrastructure domains
• Providing technical leadership and coaching to other engineers
• Contributing to architecture, engineering standards and technical decision-making

What is your skillset?

• Strong background in Java & Spring Boot
• Previous exposure to mainframe environments, ideally IBM Z / z/OS
• Experience with Docker, Kubernetes or OpenShift
• Strong understanding of REST APIs and enterprise integration
• Experience working in complex enterprise environments

What is your offer?

• 2 Days onsite in Brussels with 3 days remote working
• Long term contract (12 months + extensions)