EO Security Support Officer

The Cabinet Office supports the Prime Minister and ensures the smooth running of government, from developing policy, to modernising public services. Within the Cabinet Office, the Security & Resilience (COSR) Team is the lead body for managing protective security, advising business units, and mitigating security threats across the department.

We are recruiting a dynamic EO Security Support Officer to work across our Security operations. To build departmental resilience and offer a rich learning experience, the successful candidate will rotate periodically across three high-performing and essential security teams:

• Vetting Team:
  Responsible for overseeing National Security Vetting (NSV) across the Cabinet Office, ensuring compliance with NSV policies and working closely with UK Security Vetting (UKSV) and the Government Security Group (GSG).
• STRAP Team (STRAPSO):
  Regulates and monitors access to highly sensitive intelligence material that requires specialised protective handling beyond standard government arrangements.
• Incident Management Team:
  Managing security incidents, assessing risks, analysing data and where necessary, escalating incidents and emerging threats to the correct team or stakeholder.

As a security Support Officer, your duties will include:

• Managing team inboxes, operational tracking systems, and taking on-call or out-of-hours responsibilities as required.
• Administering National Security Vetting (NSV) applications, transfers, and clearance processes, ensuring accuracy and complete records.
• Verifying candidate and stakeholder information to maintain the integrity of vetting databases, as well as managing the vetting aftercare and leavers' processes.
• Providing administrative control of environments, maintaining accurate security records, and managing access to secure meeting rooms and video-conferencing facilities.
• Managing user accounts, secure telephony, and access applications for classified IT systems across the Cabinet Office and No. 10.
• Delivering clear technical training, security briefings, and familiarisation sessions to colleagues of all grades.
• Supporting hardware and software projects, capturing user requirements, and tracking project delivery.
• Investigating, recording, and reporting security incidents or breaches to the wider security team with constructive recommendations.

Proud member of the Disability Confident employer scheme

Company:
Government Recruitment Service

Salary: £35,479 to £37,121 a year

Hours:

Full-time

Location:

London

Job type:
Permanent

Posting date: 22 Oct 2026

Closing date: 1 Nov 2026

The Cabinet Office supports the Prime Minister and ensures the smooth running of government, from developing policy, to modernising public services. Within the Cabinet Office, the Security & Resilience (COSR) Team is the lead body for managing protective security, advising business units, and mitigating security threats across the department.

We are recruiting a dynamic EO Security Support Officer to work across our Security operations. To build departmental resilience and offer a rich learning experience, the successful candidate will rotate periodically across three high-performing and essential security teams:

• Vetting Team:
  Responsible for overseeing National Security Vetting (NSV) across the Cabinet Office, ensuring compliance with NSV policies and working closely with UK Security Vetting (UKSV) and the Government Security Group (GSG).
• STRAP Team (STRAPSO):
  Regulates and monitors access to highly sensitive intelligence material that requires specialised protective handling beyond standard government arrangements.
• Incident Management Team:
  Managing security incidents, assessing risks, analysing data and where necessary, escalating incidents and emerging threats to the correct team or stakeholder.

As a security Support Officer, your duties will include:

• Managing team inboxes, operational tracking systems, and taking on-call or out-of-hours responsibilities as required.
• Administering National Security Vetting (NSV) applications, transfers, and clearance processes, ensuring accuracy and complete records.
• Verifying candidate and stakeholder information to maintain the integrity of vetting databases, as well as managing the vetting aftercare and leavers' processes.
• Providing administrative control of environments, maintaining accurate security records, and managing access to secure meeting rooms and video-conferencing facilities.
• Managing user accounts, secure telephony, and access…