Mitie Cleaning & Hygiene Services
Security Relief Officer

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Relief Security Officer/Step up Control Room Operator
120 hours a month with opportunity to do Overtime
£14.80 per hour pay
Free Oyster travel card (London transport covered)
10 to 12-hour shifts, including both day and night work (rotating or mixed schedule)
Job Overview
Protect customer property, people, and assets by providing security services in line with site Assignment Instructions (AIs).
Meet or exceed KPIs and SLAs through accountable, high-quality service that supports contract retention.
Undertake ongoing training and development to maintain and improve professional performance.
Main Duties
- Provide security cover across various client sites, working flexible day and night shifts of 10 to 12 hours as required by operational needs.
- Read, understand, and comply with all Assignment Instructions, Standard Operating Procedures (SOPs), Risk Assessments, and site-specific Security Instructions.
- Deter and prevent graffiti attacks on rolling stock and site facilities through proactive patrols and visible security presence.
- Conduct regular internal and external patrols of premises, buildings, compounds, railway infrastructure, and perimeter boundaries in all weather conditions.
- Monitor sites for suspicious activity, security breaches, safety hazards, or unauthorized access and take appropriate action in accordance with company procedures.
- Maintain effective access control by verifying the identity and authorization of employees, contractors, visitors, and delivery personnel before granting entry.
- Operate security systems, gates, barriers, and access control equipment to ensure site security is maintained at all times.
- Respond promptly and professionally to alarms, incidents, emergencies, and requests for assistance, following established procedures and escalation processes.
- Liaise with client representatives, contractors, emergency services, and members of the public in a professional and courteous manner.
- Record and report all incidents, accidents, security breaches, and suspicious activity accurately using occurrence books, patrol logs, and incident reporting systems.
- Carry out vehicle and personnel checks where required and ensure compliance with site security policies.
- Identify and report security vulnerabilities, damaged infrastructure, faulty equipment, or health and safety concerns that could affect site operations.
- Maintain a high standard of personal appearance, professionalism, and customer service while representing the company and client.
- Ensure all duties are performed in accordance with company policies, industry regulations, and health and safety requirements.
- Provide detailed handovers to oncoming security personnel to ensure continuity of operations and effective communication between shifts.
- Remain vigilant at all times and contribute to maintaining a safe, secure, and controlled environment for staff, visitors, contractors, and client assets.
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Fleet Security Control Center (FSCC) Cover
Additional note: You will be required to cover the Fleet Security Control Center (FSCC) as part of operational requirements. This may include the following duties:
- Maintain familiarity with CCTV systems, access control systems, and patrol and incident management systems.
- Respond promptly and appropriately to incidents at client premises in line with company procedures and contractual requirements, including completion of incident reports.
- Follow escalation procedures for incidents identified through CCTV and other support systems.
- Read, understand, and comply with Assignment Instructions, policies, procedures, SOPs, and site-specific documentation.
- Ensure reporting standards and requirements are completed within agreed timescales.
- Maintain awareness of relevant legislation for the role, including DSE, GDPR, and CCTV Code of Practice requirements.
- Liaise professionally with Control Room colleagues, site-based security teams, and emergency services where required.
- Arrive in good time before shift commencement to complete a thorough handover/takeover of duties on post.
Mandatory Requirement
Medical Assessment (which will include a stand alone drug & alcohol test)
You must pass a medical examination before the vetting process can begin.
If you fail the medical, your application will not proceed further.
Vetting / Screening
After passing the medical, the vetting team will carry out background and security checks.
You must successfully pass these checks to continue.
Work Safety Induction (WSI)
Once vetting is completed, you will attend the Work Safety Induction course.
This course must be passed before moving to the next stage.
Depot Track Awareness (DTA)
After completing the WSI, you will attend the Depot Track Awareness course.
This course must also be passed.
Pass Requirements
You are allowed up to 3 attempts to pass both the WSI and DTA courses.
If you do not pass within those 3 attempts, your job offer will be withdrawn.
Required
- A full driving License with minimum 12 months driving experience
- 3 years' experience within the security industry
- 5 years of work history to pass vetting
- SIA license
- Good knowledge of Microsoft office
- Good report writing skills
- Ability to learn various systems and implement that knowledge and training
- Ability to maintain a friendly approach to staff but maintain a managerial outlook
- 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.


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What We Are Looking For
- Previous Security Experience (including control room experience minimum 2 years)
- SIA License
- CCTV preferable
- Full UK driving Licence (essential)
Our 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. So you can get expert advice by video or phone without having to leave your home.
- We offer financial wellbeing assistance through our Salary Finance scheme. For example, you could access 50% of your earned pay before payday for a small fee. Salary Finance also offers competitive loans.
- When you join us, we’ll give you a link to our flexible benefits platform, Choices. This gives you the chance to customize your benefits to best suit your lifestyle. You can choose from dental insurance, dining cards, coffee clubs, buying technology products at an affordable cost, and much more!
- We give you access to high street discounts from thousands of well-known retailers, gyms, and more through our MiDeals platform. And we have a cycle-to-work scheme.
- Life cover is the greater of your equivalent annual salary or a minimum of £10,000 - giving peace of mind for your dependants. We also offer a save-as-you-earn scheme, and a Mitie Matching Share Plan (you could even be awarded free shares in Mitie).
- We award our employees with Mitie Stars as recognition for their hard work. There are cash prizes up for grabs each month and at the end of the year there’s a chance to scoop a top prize of £10,000!
- Our success is a direct result of the experience and quality of our people. Progressing your career is therefore a top priority for us. We offer a diverse variety of training and development avenues via a wide selection of learning resources to suit you.
- 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 Us
Since 1987, Mitie’s 84,000 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.
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Together our diversity makes us stronger.
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