Security Supervisor

Security Supervisor - Orange Shift

Location: RAF Brize Norton, Carterton, Oxfordshire, OX18 3LX
Salary: Competitive plus excellent benefits
Schedule: Perm/FT/39.5 hours

Ready to impact a better future?

As a Security Supervisor in our RAF Brize Norton team, you'll lead the delivery of security operations that help keep a critical Royal Air Force station safe, secure, and running effectively. You'll supervise colleagues, coordinate resources, and ensure security standards are maintained while supporting operational excellence.

Our work touches lives through the protection of essential defence infrastructure and the people who rely on it every day. In this role, you'll create a positive impact by helping maintain a secure environment, supporting operational readiness, and fostering a culture built on trust, care, safety, and continuous improvement. Your work has purpose, with opportunities for growth and the chance to help impact a better future.

What you’ll do as a Security Supervisor

• Supervise security operations, colleagues, facilities, equipment, and resources to ensure effective service delivery.


• Maintain security standards and compliance with Security Industry Authority (SIA) requirements and Joint Service Publication (JSP) 440 regulations.


• Manage shift staffing levels, including arranging cover for planned and unplanned absences.


• Oversee access control for vehicles, visitors, contractors, military personnel, and employees entering and leaving the site.


• Maintain accurate records of incidents, daily activities, and hours worked, ensuring all documentation is completed correctly.


• Promote a strong safety culture, respond to emergencies when required, and report any compliance, safety, or operational concerns.

Does this sound like you?

• You hold a valid SIA licence for manned guarding.


• You have security experience gained within industry or the Armed Forces.


• You understand JSP440 requirements and SIA manned guarding regulations.


• You hold a current driving licence with no more than six penalty points.


• You have strong communication skills and are confident using Microsoft Office applications.

What we offer

• Competitive Holiday Package

• Up to 6% contributory pension scheme


• Over 1,100 internal courses available, funding for qualifications and apprenticeships (we currently offer over 60 different apprenticeships), mentoring opportunities, and a focus on internal progression.


• Employee Assistance Programme, Bupa Anytime HealthLine, wellbeing app, 30% off at Serco-managed leisure centres, and 24/7 access to a virtual GP service


• Discounts across around 1,000 retailers, from food and clothing to days out, entertainment and travel


• Paid volunteering day, tax-free charitable giving through Payroll Giving Scheme, donate your pennies from your monthly pay to the Serco People Fund Charity


• Our employee networks support connection by providing spaces for collaboration, learning, and belonging. They represent and empower all our colleagues including veterans, LGBTQIA+ employees, women, parents and carers, people with disabilities, and people from all cultural backgrounds.

Vetting and checks:

This role requires Baseline Personnel Security Standard (BPSS) clearance, which involves verifying your identity, employment history, nationality, and criminal record to meet government security standards. In addition, depending on the nature of the role, you may need to obtain formal Security Clearance (such as CTC or SC), which includes more detailed background checks on employment, criminal record, and financial history to ensure suitability for working in secure environments. Please note that UK residency requirements may apply for certain levels of clearance. You will also complete an Occupational Health Questionnaire so we can identify and provide any support you may need to undertake the role effectively.

Let’s impact a better future, together. Apply today.

A little bit about us:
At Serco, everyone plays a vital part in delivering essential public services that make a real difference. As a global team of 50,000 people across Defence, Transport, Justice, Immigration, Healthcare, Leisure and Citizen Services, we’re united by a shared purpose: to improve the services that communities rely on. Guided by our values of Trust, Care, Innovation and Pride, our people make meaningful impact, every single day.

Our inclusive recruitment commitment:
We prioritise your skills and potential. As a Disability Confident Leader, the Top Great British Employer of Veterans 2026, and a Gold Inclusive Employer Standard holder, we champion equal opportunities for all. We offer flexible and hybrid working where possible and make reasonable adjustments throughout recruitment and employment.

• Guaranteed Interview Scheme: Applicants with disabilities, veterans and people with convictions, who meet the minimum job criteria, are guaranteed an interview. Simply opt into the relevant scheme on the application form.


• Ban The Box: We also support fair access for those with unspent criminal convictions through our ‘Ban the Box’ pledge (some roles may have security exemptions).

For support with your application, please contact [email protected].

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