Cyber Security Consultant

Company: CBSbutler
Apply for the Cyber Security Consultant
Location: London
Job Description:

Job Description

Cyber Security ConsultantPreston, London or Birmingham / Hybrid – 2 days per week onsite570 per day inside ir35Active SC clearanceSole UK NationalWe are looking for an experienced Cyber Security Consultant to join a major Defence programme, supporting the onboarding of new service providers into a complex SIAM / multi-supplier environment. This is a security governance, supplier integration and operational readiness role, rather than a hands-on technical security position.

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Key Responsibilities:

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Develop supplier onboarding packs covering security processes, policies, governance and reporting.

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Align incoming suppliers with established Incident Management, Vulnerability Management and Security Assurance processes.

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Define supplier roles, responsibilities and interaction models across the SIAM/OI environment. Identify and manage gaps between supplier capabilities and existing security requirements.

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Support Security Management Plans, compliance reporting, audit and assurance activities.

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Support Operational Readiness Reviews (ORR) and Service Commencement activities.

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Produce clear, reusable security and service management documentation.

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Coordinate with incoming and incumbent suppliers, transition teams and client stakeholders.

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Support operational readiness across incident management, vulnerability management, monitoring, backup/recovery, access control and service reporting.

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Key Experience: Cyber Security Governance, GRC or Security Assurance experience.

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Strong experience within SIAM / multi-supplier environments.

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Good understanding of security and service management processes.

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Experience with supplier onboarding, transition or transformation programmes.

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Strong stakeholder management and documentation skills. Experience supporting compliance, audit and assurance activities.

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Knowledge of NIST CSF, Secure by Design and NCSC guidance would be advantageous.

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Defence or wider Government/high-security experience is highly desirable.

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If you have the required active SC clearance, are a sole UK national, and have strong security governance/SIAM experience, I'd be keen to hear from you. Apply now, or email your CV to me directly at laura.fitzgerald@cbsbutler.com

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Posted: October 2nd, 2026