Security Architect

We are seeking an experienced DV-cleared Security Architect to play a key role in delivering secure-by-design infrastructure aligned to FCAS (Future Combat Air System) cyber requirements and Air Sector architecture standards.

This is a high-impact role operating in a sensitive, mission-critical environment, working closely with multi-disciplinary cyber and engineering teams to ensure security is Embedded throughout the system life cycle.

• Lead and contribute to security design reviews, analysing requirements and defining robust security principles and architectures.
• Conduct threat modelling and map existing infrastructure to identify risks and control gaps.
• Develop and maintain reusable security patterns, ensuring alignment with Air Sector and FCAS architecture standards.
• Collaborate across cyber pillars, including Digital Engineering and wider security stakeholders.

• Maintain and manage project security risk registers, escalating risks where appropriate.
• Validate compliance against security policies, standards, and control baselines.
• Review control effectiveness against assurance baselines and external assurance outcomes.
• Contribute to Operational Readiness Reviews and working groups as required.

• Coordinate and oversee penetration testing activities.
• Review pen test outputs, manage findings through the risk register, and ensure effective remediation.
• Validate secure configurations and closure of open test results.
• Conduct and oversee SAST/DAST, validating remediation of identified issues.
• Ensure secure libraries, dependencies, and system configurations are maintained.

• Track vendor patching and maintain accreditation and assurance evidence.
• Package and document all security artefacts and deliverables for sharing with FCAS Security.
• Ensure comprehensive documentation to support knowledge transfer and continuity.

• Proven experience operating as a Security Architect within complex, high-assurance environments.
• Strong background in secure infrastructure design, threat modelling, and security architecture.
• Hands-on experience with security testing, vulnerability management, and remediation.
• Strong understanding of security controls, assurance frameworks, and accreditation processes.
• Experience working within defence, aerospace, or highly regulated environments.
• Excellent stakeholder engagement and documentation skills.

• DV clearance is mandatory and must be current and transferable.

• Work on a nationally significant defence programme at the forefront of cyber and aerospace innovation.
• Be part of a highly skilled, collaborative security community.
• Opportunity to influence security architecture at scale within a complex, cutting-edge environment.