Senior Security Officer

  • Ref:
    94735
  • Location:
    London
  • Employment:
    Full time
  • Closing Date:
    25 May 2026

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The  Site Security Supervisor will report to the Regional Security Operations Manager and will be responsible for leading security operations at the designated client site, ensuring a safe and secure environment for personnel and assets.

This role requires vigilant and reliable professionals with a strong security background, as well as the ability to supervise and support on-site security teams.

Key responsibilities include managing daily security operations, CCTV monitoring conducting patrols, monitoring access points, handling incidents, and maintaining accurate reports.

The ideal candidates will demonstrate strong leadership skills, excellent attention to detail, and the ability to remain calm and make quick decisions in high-pressure situations, ensuring the highest standards of site security.

The responsibility for ensuring appropriate welfare provisions lies with Mitie's Site Supervisor tasked with implementing and overseeing welfare arrangements, conducting regular inspections, and addressing any issues promptly.

The site supervisor will work in conjunction with health and safety officers to ensure compliance with legal requirements and company policies.

 

Supervising a team of Security Personnel.

  • Making sure all site Health and Safety Procedures are followed for staff, visitors and occupants.
  • Using electronic systems for site patrolling and CCTV monitoring .
  • Acknowledgement and dissemination of Assignment Instructions/Risk Assessments /Standard Operating and Emergency Procedures as well as their reviews and updates.
  • General site day to day rostering and post management and visits.
  • Monitoring issue of PPEs and equipment.
  • Training of staff.
  • Emergency response- coordinating lock downs, alarm responses and evacuation procedures.
  • Coordinating access control and gate outages response.
  • Reporting and monitoring faults.
  • Completing incident reports and following the correct escalation process.
  • Liaising with Police – reporting and investigating incidents
  • Providing operational cover as and when required to support the security team on site.
  • Controlling and monitoring access (Visitors/Contractors/Deliveries).
  • Management and operation of the car park enforcement procedures.
  • Management of car parking arrangements associated with large events.
  • Conducting Return to Work and Absence Follow Up interviews.
  • Monitoring staff attendance and ensuring all posts are fully covered.
  • Assisting Management with Investigations and Disciplinaries.
  • Taking minutes during meetings as and when required.
  • Conduct staff performance reviews as and when required.
  • Other related security duties as may be instructed by Mitie management.

 

 

What we are looking for

 

Positively respond to reasonable requests made by Mitie management.

Be flexible and prepared to work a rolling roster including days/nights/weekends and Bank Holidays

Respond to reasonable requests made by the client that falls within contracted scope.

Be courteous, helpful and polite at all times.

Have the ability to communicate verbally and formally well , at all levels with a team player attitude.

Be highly motivated and capable of multi-tasking, coupled with a team player attitude

Have a pro-active approach to learning and development.

Have the ability to handle a varied workload with attention to detail and be able to work on own initiative

Have basic IT knowledge.

Must have Counter Terrorism (CT) level clearance NPPV L2 or SC clearance.

Must be able to satisfy the vetting checks as per BS7858.

Must be able to work in line with the requirements and standards, as per BS 7499.

Possess a valid SIA License for guarding/door supervision and CCTV licence.

Site supervisory experience essential.

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 customise 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 .

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.

 
 

Looking to move roles but not leaving the Mitie family?

Why not share your experience with others about life at Mitie?

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Location
The Shard - London
The Shard, Level 12, 32 London Bridge Street, London, Greater London, England, SE1 9SG
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Benefits

Pensionpension
Life Assurancelife-assurance
Cycle to Work Schemecycle
Employee Shares Schemesshares
Salary Finance Optionsfinance
Holidayholiday
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