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G4S
G4SPosted Closes in 28 days · 30 Nov 2026

Security Supervisor

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Location
ReadingBerkshire

About the role

We have a great opportunity to join G4S as a Security Supervisor, working on a high-profile security site in the Reading Area, working in their Physical Security Operations Centre!

Contract Information:
Pay Rate: £18.35 per hour
Shift Pattern - 4 on 4 off, days & nights
Hours per week: 42 hours per week
SIA Licences: Door Supervisor or Security Guarding
Security Clearance Required: SC Clearance

You will need to undergo Enhanced Background Checks prior to commencement of the role and be eligible to pass National Security Vetting (SC Clearance) which includes minimum 5 years residency in the UK.

You must have a Full UK Driving licence, which is a requirement to get to the site.

Your Time at Work

As a Security Supervisor your duties include:

- Lead and supervise PSOC Operators during assigned shifts.
- Ensure the effective delivery of 24/7 PSOC services across multiple NESO sites.
- Act as the primary escalation point for complex incidents and operational issues.
- Manage and coordinate the response to security incidents and emergency situations.
- Provide command and control oversight during critical events.
- Ensure Operators follow incident management procedures and escalation processes.
- Monitor service performance and ensure high standards of operational delivery.
- Log, track, and escalate security infrastructure and non-security infrastructure faults.
- Analyse performance to identify trends and generate meaningful insights to support continuous improvement activities.
- Promote effective team working, coaching, and development of Operators.
- Uphold and adhere to NESO values.

Our Perfect Worker

What we're looking for:

- Minimum of 3 GCSEs at Grade C/4 or above (or equivalent), including Mathematics and English.
- Valid SIA CCTV Licence maintained throughout employment.
- National Security Vetting (SC Clearance) in date and capable of being transferred.
- Fluent spoken and written English to CEFR C2 level or equivalent.
- Minimum 4 years' experience working within an Alarm Receiving Centre (ARC), Security Control Room, or equivalent environment.
- Minimum 2 years' experience in a supervisory role within an ARC or security control room environment.
- Demonstrable experience leading and managing operational teams.
- Experience triaging incidents and directing emergency response activities.
- Experience managing incident command and control processes.
- Experience with maintenance activities and security system faults.
- Experience producing reports and analysing operational data.
- Experience operating the Synergy CCTV and video management system (preferred, not essential).
- Experience using the Gallagher access control system (preferred, not essential).
- Strong leadership and people management skills.
- Excellent incident assessment and decision-making capability.
- Ability to remain calm and effective during high-pressure situations.
- Strong analytical and problem-solving skills.
- Proficiency in Microsoft Office applications and standard IT systems.

Key Information and Benefits

- 5.6 weeks paid holiday (8 of these will be in lieu of bank holidays - subject to shift pattern and accrual)
- Workplace pension scheme
- Life assurance benefit
- Contributory healthcare scheme
- Eyecare vouchers
- Employee discount schemes
- Progression, training & development opportunities
- Refer a friend scheme
- Free uniform provided

Job Ref: 1G4S (G708)

G4S is a recognised Disability Confident Leader Employer, committed to fostering an inclusive workplace where everyone can thrive. We prioritise accessibility, support, and opportunity for all employees. Join our diverse and empowering team today

About Staffline

Staffline are working in Partnership with G4S, providing a recruitment solution for security roles.

Please note that our job adverts are correct at the time of publication, but some details and job responsibilities are subject to change.

This job advert may not be copied, imitated or used, in whole or in part, by third-party websites, without prior written consent from Staffline.

Key details

Contract type
Permanent
Industry
Security
Trade
Security Manager
Job role
SIA Security Guard
Client
G4S
Posted
2 Nov 2026
Closes
30 Nov 2026
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