We are looking for a Senior Java Developer who will join an European Institution in Brussels (50% onsite).
EU citizenship is required for security clearance.
SPECIFIC EXPERTISE:
- At least 1 year of specific expertise in Back-end: Vert.x, Kotlin , Java (> 17) , Spring Boot (WebFlux), Hibernate.
- At least 1 year of specific expertise in Architecture & Integration: Microservices Architecture, API-driven Development, AS4.
- At least 1 year of specific expertise in Database: MongoDB , PostgreSQL, Virtuoso Triple Store, OpenSearch.
- At least 1 year of specific expertise in Containerization & Orchestration: Docker, Kubernetes.
- At least 1 year of experience in Security: OpenID Connect, OAuth2, TLS, Keycloak.
- At least 1 year of specific expertise in Security Testing & Dependency Management: SAST, DAST, Fortify, SonarQube, Sonatype, Dependency-Track, Maven.
- At least 1 year of specific expertise in Collaboration & Productivity Tools: JIRA, Confluence, Office 365, SharePoint
KNOWLEDGE AND (NON-TECHNICAL) SKILLS
• Ability to apply high quality standards to all tasks.
• Ability to participate in multi-lingual meetings, good communication skills.
• Capability of working in an international/multicultural environment, rapid self-starting capability and experience in working in a team, understanding the needs, objectives, and constraints of those in other disciplines and functions.
• Ability to adapt to unplanned changes or decisions.
• Ability to understand, speak and write in English C2.
• High degree of discretion and integrity is required as the applications managed and maintained contain personal and confidential data.
Key Skills
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- Posted
- Apr 22, 2026
- Type
- Full-time
- Level
- Mid-Senior
- Location
- Brussels Metropolitan Area
Industries
Categories
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