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Solution Architect

BrusselsHybridHours negotiable<3months

You will become the technical reference for a team of 8-9 experienced Solution Architects within a large public sector organisation. This is not a standard Solution Architect position; you will take the lead on architectural decisions while remaining close enough to the technology and development teams to challenge technical choices, review solutions, and provide hands-on architectural guidance.

The organisation is looking for someone who can combine deep technical expertise with strong leadership and communication skills. You must be able to challenge experienced architects and developers, but also confidently defend architectural decisions at Board and business level. This is a long-term freelance opportunity for an architect looking to take on a high-impact technical leadership role within a complex organisation.

What you do

  • Act as the technical reference point for the architecture team.
  • Take the lead on complex architectural decisions and defend them towards the Architecture Board and business stakeholders.
  • Define, evolve, and enforce architectural principles, standards, and best practices.
  • Challenge architectural choices made across multiple projects and Scrum teams.
  • Support Solution Architects in solving complex technical and architectural problems.
  • Participate in architecture reviews and contribute to the organisation's technology roadmap.
  • Work closely with development teams and remain technically credible with senior developers and technical leads.
  • Review technical designs and, where relevant, participate in code reviews.
  • Guide teams through technology choices, integration patterns, security considerations, and architectural trade-offs.
  • Provide architectural leadership across a combination of legacy modernisation and new technology initiatives.
  • Act as a natural leader within the architecture community, without direct people-management responsibility.

What they ask

  • Significant experience in Solution Architecture / Software Architecture.
  • A strong technical background in Java, ideally within large and complex environments.
  • Good understanding of Angular / modern application architectures.
  • Strong knowledge of application integration and security.
  • Experience working with both legacy environments and modern architectures.
  • Experience in large-scale, multi-project organisations.
  • The ability to challenge technical decisions and communicate complex subjects clearly.
  • Experience interacting with senior management, architecture boards, or business stakeholders.
  • The credibility to work directly with experienced developers, technical leads, and other architects.
  • Strong leadership and influencing skills, without necessarily having formal management responsibility.
  • Excellent English communication skills. French or Dutch is a plus.

Profile

The ideal candidate is someone who is already considered a technical reference by the people around them. You don't necessarily need to be the person with the biggest title in the room. You need to be the person others turn to when an architectural problem becomes difficult. You are comfortable moving between: Developer → Architect → Architecture Board → Business without losing credibility at any level.

How to apply

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