Entreprise Architect

Brussel

|Brussel

|Enterprise Architect

|Payroll (consultancy) |Payroll (no consultancy)

|Nederlands |Frans |Engels

# INW24706

Function

We’re looking for a Senior Architect IT Infrastructure to join our client, a public-sector organization with a strong societal mission in cybersecurity. You’ll take a leading role in designing, coordinating and governing a modern, secure IT landscape as part of a major cloud-driven transformation, working closely with the IT Manager and Security leadership.

The Role

As Senior Architect IT Infrastructure, you act as the architectural anchor across infrastructure, cloud and security topics. You ensure end-to-end coherence between projects, technical teams and stakeholders, and you translate strategy into pragmatic, secure designs.

Key Responsibilities

Architecture & Governance

Define and formalize IT architecture principles, standards and best practices (e.g. TOGAF)
Design and maintain target architectures (infrastructure, application landscape and security)
Set up and lead an internal Architecture Board together with key IT and Security stakeholders
Support governance initiatives such as RACI definition and improved change processes

Cloud & Migration Leadership

Coordinate the migration of the existing IT infrastructure towards a cloud / hybrid environment
Ensure alignment between multiple architects, technicians and service providers involved
Supervise the migration of Microsoft SaaS solutions, including:
- Microsoft 365 (O365), OneDrive, SharePoint, Teams, Fabric and related services

Project Support & Quality Assurance

Provide hands-on architectural support to Project Managers throughout projects
Review, challenge and improve solution designs to guarantee security, performance and consistency
Own and/or validate project architecture and design documents
Ensure high-quality, complete and structured documentation post-migration
Participate in troubleshooting sessions during IT and/or security incidents when needed
Facilitate knowledge-sharing sessions to uplift the broader IT maturity of the organization

Your Profile

Experience

Master’s degree in IT (or equivalent experience)
10+ years of experience as an IT Architect
12+ years total professional IT experience

Technical Expertise

Strong background in enterprise and infrastructure architecture
Experience with multi-cloud and hybrid environments (IaaS, PaaS, SaaS, DCaaS)
Knowledge of DevOps concepts and modern delivery practices:
- CI/CD, continuous testing, feature toggles, high availability
Strong understanding of:
- Networking (switching, routing, security)
- Communication standards and protocols + secure communication principles
- Cybersecurity fundamentals for modern IT environments
Familiarity with architectural frameworks such as TOGAF

Personal Skills

Proactive, autonomous and structured
Pragmatic and efficiency-driven, able to balance best practices with real-life constraints
Strong stakeholder management skills (diplomatic, collaborative, convincing)
Clear communicator with strong writing and documentation skills
Able to synthesize complexity into actionable designs and decisions

Languages

English: professional working proficiency (written and spoken)
French or Dutch: native-level
Other national language: at least passive understanding

This is an opportunity to shape a secure, future-proof IT environment where architecture and cybersecurity are at the core of the mission.

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