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

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.

• 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:
  Dev Sec Ops , 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

• 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

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