Job Overview
Job Overview – Support Officer
Better places, thriving communities.
The Relief Security Officer plays a key role in supporting the security operation by providing flexible cover across multiple sites as required. This role ensures continuity of service during periods of absence, annual leave, sickness, or increased business demand.
Relief Officers are expected to maintain high standards of professionalism, reliability, and customer service while adapting quickly to different site environments and operational requirements.
Key Responsibilities
* Provide security cover across designated sites at short notice, including days, nights, and weekends.
* Maintain a visible security presence to deter incidents and promote a safe environment.
* Control access and egress of staff, visitors, and contractors in line with site procedures.
* Conduct regular patrols, inspections, and checks to ensure site integrity is maintained.
* Respond promptly and professionally to incidents, alarms, or emergencies.
* Accurately complete incident reports, patrol logs, and any required documentation.
* Follow all site‑specific assignment instructions and adhere to company policies.
* Deliver excellent customer service and maintain strong communication with site teams and Control.
* Adapt quickly to different site layouts, expectations, and client needs.
Skills & Attributes
* Strong communication and interpersonal skills.
* Ability to remain calm and professional under pressure.
* Reliable, punctual, and flexible with working hours and locations.
* Able to work independently or as part of a wider security team.
* Good situational awareness and decision‑making ability.
* Professional appearance and conduct at all times.
Requirements
* Valid SIA Licence (Security Guarding or Door Supervision).
* Right to Work in the UK.
* Five‑year employment checkable history (or equivalent).
* Willingness to travel to different sites as required.
* Ability to work a variety of shifts, including short‑notice requests.
* Travel at least 20 miles one way up to 50 if needed.
Reporting To
Site Supervisor / Security Manager / Operations Manager (depending on site).
Job Overview (Detailed)
* To protect our customer's property, people and/or assets by providing security services in direct accordance with the sites published Assignment Instructions (AI's) and any subsequent changes.
* Delivering results that meet and/or exceed the Key performance indicators / Service Level Agreement for the customer through full responsibility and accountability, providing a service that aids in the retention of the contract.
* To undertake additional training to ensure continuous self‑development.
Main Duties – Operations
* To be aware of and ensure compliance with all aspects of policies and relevant legal and regulatory requirements as directed by the Security Account Manager and in accordance with UK Law and Guidance bodies.
* Fully and satisfactorily complete all of the tasks and duties on site as defined within the published Assignment Instructions (AI's).
* Proactively refer to and review the published Assignment Instructions, thus familiarising oneself with any changes in order to suggest additional amendments that will improve or enhance the current level of service.
* To be compliant with Industry and Statutory Legislation (you are required to obtain a front‑line licence in either Security Guarding or Door Supervision), which must be worn at all times whilst carrying out your duties. The Customer also requires a CCTV PSS SIA Licence. There are also additional courses that are contractually required.
* Comply with legal obligations and safety requirements of the role.
* Follow instructions and procedures appropriately without unnecessarily challenging authority.
* Work in a systematic, methodology and orderly way.
Training
* Fully and satisfactorily complete all required competency training.
* To undertake additional training to ensure continuous self‑development as directed by the Security Account Manager.
* Use technology to achieve key work objectives and develop job knowledge and expertise through continual professional development.
* You are required to ensure you renew your licence 16 weeks before expiry.
Security and Health & Safety
* Look out for, and to immediately report, any Health & Safety hazards, or potential hazards, on site.
* Stay alert to any threats or changes within the work environment in order to take the appropriate action to reduce the chance of disruption, loss or damage.
* Use common sense and initiative by immediately involving others if a situation appears to become threatening.
* To maintain professional conduct in the face of difficult situations and challenging customers.
* Complete an accurate, detailed notebook entry as soon as possible after any incident, which can then be used as part of the Incident Report process.
* Keep to schedules and demonstrate commitment to Mitie and the Client.
* To ensure check calls are being carried out at the allocated time slot as stipulated in the Assignment Instructions (AI's).
* To call emergency services and Communication Centre to report all incidents.
What We Are Looking For
* Previous Security Experience
* SIA License
* SC Clearance desirable
Benefits
Our market‑leading flexible benefits scheme provides you with benefits that suit your lifestyle. We have a virtual GP on hand for you and members of your household. We offer financial wellbeing assistance through our Salary Finance scheme. When you join us, we’ll give you a link to our flexible benefits platform, Choices, allowing you to customise your benefits. We give you access to high street discounts from thousands of well‑known retailers, gyms and more through our MiDeals platform. We also have a cycle‑to‑work scheme. Life cover is the greater of your equivalent annual salary or a minimum of £10,000, saving‑as‑you‑earn scheme, and the Mitie Matching Share Plan. We award our employees with Mitie Stars as recognition for their hard work, with cash prizes each month and an end‑of‑year prize of £10,000.
Inclusive Recruitment
We are committed to ensuring our recruitment process is inclusive and accessible to all. If you have a disability or long‑term condition (for example dyslexia, anxiety, autism, a mobility condition or hearing loss) and need us to make any reasonable adjustments, changes or do anything differently during the recruitment process, please let us know by emailing at .
About Mitie
Since 1987, Mitie’s 80,000 employees have been maintaining companies globally. We are the UK’s leading facilities management and professional services company, and our clients range from household names in banking, critical government sites as well as hospitals and schools.
Join our Mitie Team
Together our diversity makes us stronger.
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