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# Senior Solution Architect - Public Sector - Permanent

- **Company:** Collective
- **Location:** Brussel, Belgium
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** OpenTofu, Java (Programming Language), Automation of Tests, Microsoft Azure, Code Review, Continuous Integration, DevOps, Identity and Access Management, Role-Based Access Control, Release Management, Software Engineering, Git, Kubernetes, Bicep, Docker, Programming Languages
- **Published:** October 15, 2026
- **Apply:** https://www.adzuna.be/details/5928357063

## About the Role

* Location: Brussels, Belgium - minimum 3 days on-site per week
 * Experience: 8+ years in software engineering, including 3+ years in technical leadership
 * Languages: English required; French and/or Dutch are a plus

Additional Information

 * This is not an architecture-only or advisory role. The client expects someone who remains directly involved in technical delivery and takes responsibility for what reaches production.
 * Nice to have: Azure certifications (AZ-204, AZ-305), Docker, AKS or Kubernetes, Infrastructure as Code (Bicep or OpenTofu), experience in Belgian public-sector or regulated environments.
 * Candidates must be able to demonstrate concrete examples of leading a solution through the full delivery lifecycle, combining architecture with hands-on development and code reviews, coaching a small team while resolving technical blockers, managing significant production incidents or rollout issues, and providing two verifiable professional references for comparable assignments., 1. 8+ years of software engineering experience, including at least 3 years leading technical delivery
 2. Proven experience delivering a solution from initial design to production, including operational handover
 3. Strong Azure or equivalent public cloud experience, including hybrid environments
 4. Confirmed Java or Python expertise in a professional environment, with the ability to review and guide work in the other language
 5. Solid DevOps foundations: CI/CD, Git, automated testing and release management
 6. Security by design: identity and access management, secrets, least privilege, encryption and data protection
 7. Hands-on technical leadership: architecture, code reviews, technical decisions and developer coaching
 8. Availability to work on-site in Brussels at least 3 days per week

## Description

The client is looking for a hands-on Solution Architect / Lead Developer who can combine architectural ownership, technical leadership and software delivery.
Missions

 * Define and own the solution architecture across applications, integrations, data and security.
 * Lead technical delivery from design and backlog refinement through development, deployment and production handover.
 * Make technical decisions, manage risks and unblock the development team.
 * Review code and designs, coach medior developers and maintain high engineering standards.
 * Establish best practices for Git, CI/CD, automated testing, environments and releases.
 * Work closely with business, product, infrastructure and security stakeholders.
 * Maintain architecture documentation, including diagrams, solution architecture documents (SADs) and architecture decision records (ADRs).
 * Anticipate and mitigate technical risks related to security, performance, maintainability and production operations.

Tools & Environment

 * Azure or equivalent public cloud, including hybrid environments
 * Java and Python programming languages
 * DevOps foundations: CI/CD, Git, automated testing, release management
 * Security by design principles: identity and access management, secrets, least privilege, encryption, data protection
 * Architecture documentation tools and practices