CNIS Security Specialist: Protective, Vetting & Assurance

We are recruiting three CNIS Specialist roles – Protective Security Specialist, Personnel Security & Vetting Specialist, and Commercial Security Assurance Specialist.

CNIS Protective Security Specialist responsibilities

• Conduct and assure site risk assessments and define protective measures
• Provide security design requirements for new builds and major changes, reviewing specifications
• Coordinate with CTSA for site advice and plan testing/exercises
• Oversee incident management playbooks and after‑action reviews for physical incidents

CNIS Personnel Security & Vetting Specialist responsibilities

• Set role‑based vetting, working with Defra group Security on applications
• Embed insider risk controls, working with Professional Standards
• Partner with Professional Standards, HR and Security to manage investigations and cases
• Define, create, and manage training requirements

Commercial Security Assurance Specialist responsibilities

• Work with Commercial on CNIS security clauses and schedules, providing advice during procurement and on managing contracts securely
• Run supplier due diligence and ongoing assurance
• Coordinate with NPSA/NCSC guidance for supply chain risk, advising on remediation and termination where needed
• Monitor contract performance against security KPIs, escalating non‑conformance

Experience and skills required

• 5 or more years in protective security; familiarity with site operations and design standards
• 5 or more years in personnel security or vetting; understanding of UK government vetting regimes and insider risk
• 5 or more years in procurement or supply‑chain security; strong contracting knowledge and supplier assurance
• Building effective partnerships to jointly manage risks, with internal and external organisations
• Ability to work with senior people, manage multiple priorities, and competing demands
• Experience of stakeholder management, with clear communication and engagement skills
• Conditional requirement to achieve Security Check (SC) level of National Security Vetting

We are fully committed to having a diverse and inclusive workforce and welcome flexible working patterns for all our vacancies, including job share. A Guaranteed Interview Policy is in place to support applicants with a disability whose application meets the minimum criteria for the post.

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