Lead Cyber Security Architect

Job Description:

Lead Security Architect (DV Cleared)

Hampshire - 50& remote, 50% office based

Inside IR35, £800 per day

Our Defence Client is looking for a DV cleared Lead Security Architect with CISSP exposure to oversee security architecture and the integration roadmap for AI/ML across multicloud environments

Key Responsibilities

Lead the security elements of the program across different use cases for AI/ML development and trials.

Chair Security Working groups and trination collaboration.

Manage security visibility and outcomes, manage senior stakeholder engagement.

Threat and risk management; translate ambiguous requirements into testable controls.

Define classificationaware architectures, trust boundaries, crossdomain data movement guardrails.

Provide Security guidance and controls for complex program.

Lead Security roadmap: DevSecOps, policyascode controls, riskbased CI/CD gates.

Govern supplychain security: artefact signing, SBOMs, provenance; adopt SLSAstyle controls.

Reduced lead time to secure release; zerocritical promotion checkpoints; supplier onboarding efficiency; executive risk communication.

Experience & Qualifications

5+ years in Cyber Security, proven multicloud/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

£800.00 - £850.00 / day

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