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Freelance IT Infrastructure Solution Architect (Defense) - EU SECRET Personnel SC

Freelance IT Infrastructure Solution Architect (Defense) - EU SECRET Personnel SC

Hybrid

Brussels, Belgium

Freelance

12-03-2026

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Skills

Networking Architecture Solution Architecture Virtualization Agile

Job Specifications

As part of a consortium tender for a European organisation, we are searching for a freelance Solution Architect to be responsible for the design and governance of complex mission-critical IT systems in the defence sector. They align business and operational requirements with secure, scalable, and interoperable technical solutions that meet strict military/defence standards.

Responsibilities

Translate operational and capability requirements into secure and compliant IT solutions.
Design multi-domain architectures across classified and unclassified environments.
Align architecture with defense-specific frameworks (e.g. Federated Mission Networking (FMN), MAGERIT, NAF).
Lead architectural decisions for command-and-control, secure communications systems and accredited wide area networks.
Coordinate with internal and external stakeholders, including military and civil program leads. Ensure interoperability with legacy systems.
Collaborate closely with SOC and NOC and follow up procedures such as RFC.
Produce solution architectures from several viewpoints and aspects, technical roadmaps, and integration plans.
Support system accreditation, risk assessments, and security audits.

Profile

10+ years in enterprise or solution architecture, ideally within defense, aerospace.
Strong understanding of TOGAF, ArchiMate and service-oriented architectures.
Ability to move between detailed infrastructure designs to capability and higher-level solution building blocks designs.
Familiarity in container-based and virtualization architecture.
Able to collaborate between different projects and requirements in an agile way.
Have the mindset to pickup new requirements and learn new technologies for the purposes of providing the needed solution.
TOGAF/ArchiMate/Federated Mission Networking (FMN), NAF ITIL, PRINCE2 or PMI for project involvement
Experience working in classified environments

Additional Details

SENIORITY: Senior

START DATE: March/April (ASAP)

DURATION: 12 Months

EXTENSION: Yes

CONTRACT: Freelance

LOCATION: Brussels

ONSITE POLICY: Flexible

HOURS PER WEEK: 40

LANGUAGES: Fluent English, French is a bonus

SC: EU SECRET Personnel Security Clearance Required (must be eligible if not already cleared)

INTERVIEW PROCESS: Onsite Interview

If you are interested, please forward your updated resume to jay.kukoyi@vividresourcing.com to be considered.

About the Company

Vivid Resourcing, een toonaangevende internationale partner voor talentoplossingen, brengt u in contact met veelgevraagde technische professionals die u nodig hebt om te floreren in de sectoren Tech, Engineering, Life Sciences en Overheid. Ons wereldwijde bereik is groot, met meer dan 250 specialisten verspreid over 12 Britse, Europese en Amerikaanse kantoren. Al meer dan tien jaar verfijnen we onze unieke aanpak binnen kritieke sectoren. Onze focus op kernsectoren heeft geleid tot een diepgaande kennis en een robuust netwer... Know more