Deputy Senior Security Advisor

This is a specialist security role where you will work in close partnership with the Government Security Group (GSG), the National Technical Authorities, and National Security stakeholders, to ensure the security and continual operations of the Cabinet Office’s higher classification operations.

• Represent Cabinet Office within the cross‑government security community and work closely with the National Technical Authorities and UKIC.


• Ensure higher classification IT services and infrastructure meet the operational demands of the department and are resilient


• Oversee the processing of STRAP applications and accounts ensuring that SLA’s are achieved. Provide recommendations to enhance delivery, both internally and for the wider enterprise and ensure technology is used to optimise delivery.


• Implementing the Government Security Group policy and processes across all areas of classified material and infrastructure ensuring that protocols and requirements are both managed and delivered across the department and key stakeholders.


• Lead investigations into higher classification security incidents and breaches, working collaboratively with GSG and other relevant partners.


• Oversee the installation of physical security measures and IT infrastructure of higher classification spaces.


• Provide assurance that existing higher classifications meet the requirements of partners and ensure these continually evolve to meet the changing needs of the department and threat landscape.


• Brief and influence up to board and Ministerial level with both internal and external stakeholders.


• Responsible for overseeing the development of, and improvements to, departmental security culture, training and awareness when it comes to higher classification working. The role holder should be confident in leveraging cross government and departmental partners and utilising technology to streamline processes and enhance customer experiences.


• Manage the multi-million pound security and resilience budget for the whole team ensuring public money is managed effectively and in line with financial controls.


• Provide strategic leadership for the STRAP and InfoCap teams.


• Be part of the Cabinet Office Security & Resilience Senior Leadership Team.


• Carry out other security & resilience related activity as directed by the Senior Security Advisor.


• Deputising for the Senior Security Advisor where required.


• Promote the Government Security profession and advise/support the Government Security Group on future risk policy as well as driving the professional development of yourself and your team.

Proud member of the Disability Confident employer scheme

Deputy Senior Security Advisor

Company: Government Recruitment Service

Salary: £76,454 to £83,355 a year

Hours: Full-time

Location: London

Job type: Permanent

Posting date: 2 Nov 2026

Closing date: 22 Nov 2026

About Disability Confident

Disability Confident is a government scheme. It encourages employers to recruit and retain disabled people and those with long term health conditions.

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