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. 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.

The successful candidate will demonstrate:

• Administrative or Customer Service Experience: A background in administration, customer service, compliance, or HR is highly advantageous.
• Exceptional Attention to Detail: Proven ability to maintain accurate records, databases, and track operational activities carefully.
• Strong Communication Skills: Excellent written and verbal skills, including the ability to write clear reports, manage professional emails, collaborate and confidently present briefings or training sessions.
• Organisation & Resilience: The ability to work autonomously, manage competing tasks, adapt to changing priorities, and consistently meet deadlines within a fast-paced environment.
• Discretion & Integrity: A commitment to handling highly sensitive and classified information responsibly in compliance with security and data-protection standards.
• IT Proficiency: Competence with Microsoft Office applications and Google Workspace (Gmail, Drive, Docs, etc.), and the ability to learn specialised databases.

Alongside your salary of £35,479, Cabinet Office contributes £10,278 towards you being a member of the Civil Service Defined Benefit Pension scheme. Benefits include:

• Learning and development tailored to your role.
• An environment with flexible working options.
• A culture encouraging inclusion and diversity.
• A Civil Service Pension which provides an attractive pension, benefits for dependants and employer contributions of 28.97%.
• A minimum of 25 days of paid annual leave, increasing by one day per year up to a maximum of 30.