[5797] Interim Solution Architect – Service Design Advocacy

Start date: April 2026
Clearance: NATO Secret or equivalent
Location: Brussles, Belgium

Requirements Description:

• Provide complete infrastructure and security architecture packages, including logical and physical diagrams, trust boundaries, data flows, and responsibility mapping.
• Define and map security controls to approved requirements and standards. Maintain requirements traceability linking business, functional, technical, and security requirements to architectural decisions.
• Perform infrastructure risk assessments and threat modelling, including threats, vulnerabilities, risk ratings, impacts, and mitigations.
• Produce formal architecture review and decision records with rationale and approvals. • Deliver stakeholder advisory outputs, review comments, and resolution records. Assess architecture compliance against standards and policies, documenting remediation or approved exceptions. Consolidate residual risks and agreed mitigations. • Derive technical and security requirements from approved business and functional needs. Develop risk-prioritized security architecture artifacts aligned with business objectives and regulatory obligations.
• Define and consistently apply a security taxonomy and ontology.
• Establish architecture modelling standards, procedures, roles, and approvals. Configure and administer the enterprise architecture platform, including templates and viewpoints. Develop ICT and security architecture models using standard frameworks and tools.
• Maintain a modular, data-centric architecture repository with reusable components. Deliver analysis and assessment reports documenting assumptions, constraints, risks, and design rationale.
• Develop threat-driven security models demonstrating prevention, detection, and response. Conduct impact assessments for new threats, technologies, or regulations, tracking gaps for resolution.
• Record architecture decisions for significant deviations, including risk acceptance and compensating controls.
• Provide a security architecture effectiveness dashboard measuring threat coverage, control performance, risk exposure, and technical debt aligned with recognized standards.
• Deliver governance-compliant architecture inputs to Technical Duties & Role: Design Authority reviews.
• Produce stakeholder-tailored architecture documentation for decision-making. Ensure knowledge transfer, including user guides and training, to sustain architecture repositories and tools.
• Consult and coordinate with SMEs and IT teams, validating major architectural decisions with documented sign-off. Provide timely architecture reports highlighting risks, dependencies, and decision impacts.
• Support ICT governance aligned with international best practices. Coordinate with NATO HQ entities to ensure architectural coherence and alignment with NATO Enterprise and Digital Transformation initiatives.
• Represent CSU Brussels in governance bodies, working groups, and policy forums. Contribute to the development and standardization of policies, procedures, and guidance for information security and risk management.
• Evolve ICT and security architectures to reflect changing business requirements and cyber threats. Maintain architecture models, taxonomy, and repositories under approved governance. Ensure architecture data accuracy, completeness, and compliance with governance and audit standards.

Essential qualifications:

• Have minimum 3 years proven professional experience in projects related to construction and ICT infrastructure implementation.
• Have 3 years applied knowledge of ICT and Security Architecture models, preferably based on internationally recognized frameworks, within a large organisation with an accent on ICT infrastructure and security architectures.
• Have worked in an ICT services organisation that actually managed modern ICT & Security systems.
• Have a good conceptual understanding and technical knowledge of current and emerging information systems and technologies, and security-related aspects, including project-related organisational aspects.
• Experience and knowledge with the design and deployment of technology, its impact to business, operation and security posture. Experience drafting precise and concise reports on complex ICTrelated technical topics.
• Enterprise Architecture Certification (e.g. TOGAF Foundation certification). ITIL v4 Foundation certification.

Desirable qualifications:

• Full Enterprise Architecture Certification (e.g. TOGAF 9 or 10 certified). Project management methodology certification (e.g. PRINCE2 Foundation). Sparx EA and ArchiMate knowledge and working experience – supported by formal training is a plus.

• Have experience with Data Centre Design, Infrastructure support systems, network capacity planning. Have developed, maintained and led Security Architectures to Skill, Knowledge & Experience: address highly classified environment, including the active support of the security accreditation process. Prior experience of working in an international environment comprising both military and civilian elements.