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We are looking for
Solution Architect
About 5th floor
At 5th Floor, we help our clients transform complex environments into useful and accessible digital solutions. We place people at the heart of every project and are convinced that technology is only valuable if it meets real needs.
Our multidisciplinary teams work together to design, develop, and improve meaningful digital products.
Your role ?
Grow as a Solution Architect within an agile environment, in a passionate team while contributing to the digital transformation of a Belgian public institution.
Your missions
- Collaborating closely with development teams to design and evolve application architectures.
- Supporting teams throughout the application development lifecycle, from initial architectural thinking to implementation.
- Actively contributing to the modernization of the technology stack and the continuous improvement of development practices.
- Promoting DevOps principles, Continuous Delivery, and test automation to improve delivery quality and efficiency.
- Advising, coaching, and supporting developers in their technical choices, while fostering knowledge sharing.
- Contributing to team autonomy by providing the right tools, standards, and best practices.
- Participating in architectural discussions and decisions, favoring pragmatic, maintainable solutions aligned with business needs.
- Encouraging a culture of continuous improvement, innovation, and collaboration within teams.
Your profile
- You have at least 10 years of experience in software development, including significant experience as a Tech Lead and/or Solution Architect.
- You have solid expertise in application design and architecture, and can turn complex needs into concrete, effective technical solutions.
- You master modern development best practices, including DevOps, Continuous Delivery, and automated testing.
- You enjoy sharing your knowledge and supporting developers in growing their skills.
- You are recognized for your ability to collaborate, communicate clearly, and bring teams together around relevant technical choices.
- You are pragmatic, autonomous, and genuinely solution-oriented.
- You communicate fluently in French or Dutch.
Your tech environment
- Backend: Java 25, Spring Boot, JPA
- Architecture & APIs: Microservices, REST
- Frontend: Angular, TypeScript
- Containerization & Orchestration: Docker, Kubernetes, OpenShift, Helm
- DevOps & CI/CD: Azure DevOps
- Automated testing: Cucumber, Cypress, Karate, Pact
Nice to have
- Experience with Domain-Driven Design (DDD) principles.
- Knowledge of the Belgian public sector and its specificities.
Ready to take up the challenge? Join us at the 5th!
- 2 to 3 days of teleworking per week (included in the expenses)
- Continuous learning and development opportunities
- DKV hospital insurance
- Alan complementary health insurance
- Group insurance
- Meal vouchers
- Eco-vouchers
- Company mobile phone and subscription
- Mobility budget
- Representation expenses
- Collective agreement (CCT90) based on shared objectives
Publication date:
November 2026
Contract type:
Permanent contract – Full time
Location:
Brussels (hybrid)