EO Security Support Officer

About this role

Details

A Civil Service Pension with an employer contribution of 28.97%

GBP

Job grade

Executive Officer

Business area

CO - Strategy, Finance and Performance - Cabinet Office Security & Resilience Team

Type of role

Administration / Corporate Support

Operational Delivery

Security

Working pattern

Full-time

Number of jobs available

1

Contents

• Location
• About the job
• Benefits
• Things you need to know
• Apply and further information

About the job

Job summary

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.

Job description

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.

Person specification

Essential criteria

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.

Additional information

Cabinet Office policy is that a minimum 60% of your working time should be spent at your principal workplace. For some roles, due to their nature and the business need, this may be up to 100%. Requirements to attend other locations for official business will also count towards this level of attendance.

Behaviours

We'll assess you against these behaviours during the selection process:

• Managing a Quality Service
• Working Together
• Making Effective Decisions
• Delivering at Pace

Benefits

Alongside your salary of £35,479, Cabinet Office contributes £10,278 towards you being a member of the Civil Service Defined Benefit Pension scheme. Find out what benefits a Civil Service Pension provides .

• 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.

Things you need to know

Artificial intelligence

Artificial intelligence can be a useful tool to support your application, however, all examples and statements provided must be truthful, factually accurate and taken directly from your own experience. Where plagiarism has been identified (presenting the ideas and experiences of others, or generated by artificial intelligence, as your own) applications may be withdrawn and internal candidates may be subject to disciplinary action. Please see our candidate guidance for more information on appropriate and inappropriate use.

Selection process details

This vacancy is using Success Profiles , and will assess your Behaviours, Strengths and Experience.

To apply, you are required to submit an online application consisting of:

• A tailored CV (maximum 2 pages of A4) outlining your employment history, Qualifications and skills. Any employment gaps within the last 2 years must be explained.
• A Personal Statement (maximum 750 words) aligned to the Essential Criteria to demonstrate your suitability for this role.
• Behaviours.

Selection Process

• Stage 1: Informal Virtual Conversation

Candidates successful at the sift stage will be invited to a Stage 1 informal virtual conversation via video call.

• Stage 2: London Face-to-Face Assessment & Interview

Candidates who progress from the Stage 1 conversation will be invited to an assessment and interview in our London office. This will consist of a Written Exercise: A 30-minute bespoke written exercise. Interview: A 40-minute interview covering some Strength-based questions and the following Success Profile behaviours.

If a large number of applications are received, an initial sift will be conducted based on the lead behaviour - Managing a Quality Service.

Behaviours

• Managing a Quality Service (Lead Behaviour): Deliver professional, prompt, and accurate customer-focused security services.
• Working Together: Collaborate actively within and across teams, building inclusive relationships.
• Making Effective Decisions: Analyse and evaluate key security information to make sound, timely choices.
• Delivering at Pace: Maintain focus and energy to deliver high-quality work to agreed timelines.

Further details regarding the exercise and interview will be provided to candidates invited to Stage 2.

Expected timeline (subject to change)

Expected sift date – w/c 19/10/2026

Expected interview date/s – w/c 02/11/2026

Interview location - 100 Parliament Street, London, SW1A 2BQ.

Reasonable Adjustment

If a person with disabilities is put at a substantial disadvantage compared to a non-disabled person, we have a duty to make reasonable changes to our processes.