Senior Full Stack Java Developer – Traffic Management Systems

Our client, a leading organization in the transport and infrastructure sector, is looking for a Senior Full Stack Developer to manage business-critical applications. The role focuses on developing scalable Java solutions for infrastructure management and traffic planning within a large-scale Agile framework.

• Translate functional requirements into robust technical solutions.
• Develop and implement scalable Java-based systems for mission-critical operations.
• Optimize and maintain existing applications within a complex IT environment.
• Integrate automated testing into CI/CD pipelines to ensure software quality.
• Provide technical documentation and architectural guidance for ongoing projects.
• Mentor junior team members and foster a culture of knowledge sharing.
• Support system availability by participating in a 24/7 standby rotation.

• 8+ years backend development with Java 21, Spring Framework, Hibernate, and JPA.
• 8+ years data management using SQL, Oracle, H2, XSD, and XML.
• 8+ years software quality and testing with TDD, JUnit, Mockito, Selenium, and JMeter.
• 8+ years implementing CI/CD pipelines using Git, Jenkins, and Artifactory.
• 8+ years experience in Agile Scrum environments applying Clean Code and SOLID principles.
• 5+ years architectural design including Kafka, Domain Driven Design (DDD), and Microservices.
• 1+ years with LeSS, DevOps, OpenShift, Hexagonal Architecture, and Angular 19+.
• 1+ years using Hazelcast, WebSockets, and Miro.
• You are fluent in English with C2 level in French or Dutch.

Nice to Haves

• Willingness to participate in a 24/7 standby rotation.

• Start date: ASAP
• Work regime: Full-time
• Location: Brussels
• Contract: open to both permanent employees and freelancers.