Expert Java Full-Stack Developer – Public Security Data Systems

Our client, a prominent organization in the public security sector, is seeking a senior professional to manage critical international data exchange systems. This role focuses on the development, integration, and maintenance of high-availability technological components for national security infrastructure.

• Develop and integrate technological components for high-availability database systems.
• Create prototypes and assist in the execution of comprehensive test programs to ensure reliability.
• Draft technical documentation to support system architecture and maintenance procedures.
• Configure and implement system updates according to international data exchange protocols.
• Participate in multidisciplinary project teams and user groups to align technical solutions with business requirements.
• Provide high-level technical support and maintenance for critical application environments.

• 8+ years backend development with Java.
• 3+ years backend development with PHP.
• 3+ years frontend development with Angular and JavaScript.
• 3+ years experience with PostgreSQL for database implementation and maintenance.
• 3+ years using Maven and GitLab for build and version control.
• 3+ years working within Linux environments.
• 3+ years experience with OpenMQ messaging systems.
• 3+ years working within Agile methodologies.
• You are willing to participate in a 24/7 on-call rotation with on-site intervention within one hour.
• You possess active knowledge of English and are fluent in either French or Dutch.

Nice to Haves

• Previous experience working with public security or law enforcement organizations.
• Proficiency in tools provided by euLisa.

• Start date: 01/03/2026
• Duration: 1 year (until the end of 2026)
• Work regime: Full-time
• Location: Brussels
• Working model: Hybrid (onsite at least 2 days per week)
• Contract: open to both permanent employees and freelancers