DV Lead Security Architect CGEMJP

Role Title: Lead Security Architect

Duration: contract to run until 23/11/2026

Location: Portsmouth. Hybrid 2-3 days per week onsite

Rate: up to £616 p/d Umbrella inside IR35

Clearance required: Active DV Clearance and Sole UK National

Role purpose/summary

Mission: Own security architecture and the integration roadmap for AI/ML across multi-cloud and edge; align to client IT/cloud strategy and UK Defence priorities; enable secure multinational collaboration and high-side code promotions with repeatable assurance. Manage the Secure by Design elements of the project and own the assurance process end to end.

Key Responsibilities

• Lead the Security elements of the program across different use cases for AI/ML development and trials.
• Chair Security Working groups and tri-nation collaboration.
• Manage security visibility and outcomes, manage senior stakeholder engagement.
• Threat and risk management; translate ambiguous requirements into testable controls.
• Define classification-aware architectures, trust boundaries, cross-domain data movement guardrails.
• Provide Security guidance and controls for complex program.
• Lead Security roadmap: DevSecOps, policy-as-code controls, risk-based CI/CD gates.
• Govern supply-chain security: artefact signing, SBOMs, provenance; adopt SLSA-style controls.
• Reduced lead time to secure release; zero-critical promotion checkpoints; supplier onboarding efficiency; executive risk communication.
• Mentor juniors

Experience & Qualifications

• 5+ years in Cyber Security, proven multi-cloud/edge architecture.
• Defence experience; familiarity with UK guidance; eligibility for appropriate clearance, UK Sole national.
• Certifications: CISSP(equivalent), TOGAF

Key Attributes

This role requires essential skills of adaptability and a pragmatic and positive attitude towards security as a business enabler, the technical skills and aptitudes can be learned from the team

All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!

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