Site Security Controller in Guildford

Salary: Up to £56,400

You will provide dedicated on-site security support within the data centre environment, ensuring strict access control, visitor oversight, and the effective day‑to‑day management of the BAE client room and data hall. The role ensures compliance with ARK, BAE, and site-specific standards while protecting critical infrastructure, people, and assets.

• You will maintain strict control of all data hall access points, including building entrances, airlocks and secure zones
• You will validate and process access requests in accordance with ARK and BAE site policies, alongside maintaining accurate logs of all personnel movements
• You will ensure access control systems, badges, and authentication devices are used correctly
• You will report and escalate access anomalies, attempted breaches, and policy violations and undertake 3 monthly access control checks
• You will act as a primary point of contact for all visitors entering the data hall, including ID verification, ensuring compliance with vetting/security requirements
• You will provide physical escorting for ARK & BAE contractors in secure spaces & monitoring activities
• You will carry out regular inspections & identifying risks to help support authorised works

Job Title: Site Security Controller

Location: Farnborough - Full time Onsite

We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role

Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work, this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family, support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make.

We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

Closing Date: 9th November 2026

We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible.