Senior Solution Architect – Data Integration & Rule Engines

Our client, a leading organization in the public sector, is looking for a Solution & Development Architect to lead the technical direction of proactive digital services. The role focuses on designing scalable applications while bridging technical requirements with business objectives to ensure a reliable digital transformation.

• Direct the architectural roadmap and ensure technical consistency across the portfolio of digital applications.
• Make final design decisions regarding scalability and maintainability while incorporating team feedback.
• Translate complex technical concepts into clear specifications for the business and product owners.
• Design platform extensions and oversee the complete lifecycle of system implementations.
• Document architectural decisions and define clear technical guidelines and work packages for developers.
• Collaborate with cross-functional teams to align with organizational data platform standards and frameworks.
• Advise on the integration of rule engines and automated logic to enhance proactive service delivery.

• You have 8+ years of experience as a specialist architect in domains such as infrastructure, applications, security, or enterprise architecture.
• You bring 8+ years of expertise in backend development using Java and Spring.
• You possess 5+ years of experience with API design and integration using REST or SOAP.
• You have proven experience with modeling techniques and tools such as Archimate, TOGAF, UML, and Sparx EA.
• You're proactive, delivery-oriented, and able to communicate complex choices to non-technical stakeholders.
• You are fluent in Dutch with a C2 level.

Nice to Haves

• Experience with messaging systems like RabbitMQ or Kafka and simulation tools such as WireMock.
• Knowledge of Linked Data standards including RDF and JSON-LD.
• 3+ years of experience with Test Driven Development (TDD) and Agile Project Management.
• Familiarity with IBM ODM or similar rule engine technologies and SQL for data processing.
• Broad understanding of business processes, project management facets, and systems thinking.

• Start date: 01/06/2026
• Duration: 13 months
• Work regime: Full-time
• Location: Brussels
• Working model: Hybrid (50% onsite with fixed presence on Mondays)
• Contract: open to both permanent employees and freelancers.