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G4SPosted Closes in 28 days · 18 Nov 2026

Relief Security Officer

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Location
LondonGreater London

About the role

We are currently recruiting for a Relief Security Officer to join the G4S team, working for a well-known site in London, with the closest train/underground station, Tottenham Court Road!

Contract Information:
Pay Rate: £16.97 per hour, with an end-of-year £2,000 discretionary bonus!
Hours: 40 hours a week contract
Shifts: Monday - Friday 07:00 - 15:00. 15:00 - 23:00. Monday - Sunday 07:00 - 19:00. 19:00 - 07:00.

Please be aware that this role requires standing so you must be comfortable with this.

SIA Licence: Must have a DS SIA licence.

Your Time at Work

As a Security Officer at G4S, you are more than a Security Guard. You'll ensure the safety of our customers, staff, their buildings, and assets, whilst providing excellent customer service with a smile. We pride ourselves on delivering excellent customer service in a safe and secure environment. Other duties include:

- Provide security of Perimeter fence and access and egress controls.
- Operate external and internal security patrols as per the Assignment Instructions.
- Operate radios, and any other physical equipment used on site.
- Provide traffic control and apply parking restrictions when required.
- Provide traffic control and banksman duties for the goods in/out area.
- Monitor and effectively manage CCTV systems to protect customer employees and assets.
- Conduct mail screening duties by use of X-Ray screening equipment.
- Operate stop and search policies when instructed by GSK.
- Carry out initial investigations and report both verbally and in writing on incidents, suspicious activities, objects, and vehicles.
- Report instances of property at risk of being lost, stolen, damaged and vandalised.
- Conduct routine tests of security equipment as directed by G4S Duty Management.
- Perform locking and unlocking duties.
- Ensure keys are handled in accordance with procedures laid down in the Assignment Instructions.
- Respond to requests for assistance.
- Fully understand the use of relevant IT equipment and the GSK IT Security policy.
- Enforce a clear desk policy.

With a keen eye and a brilliant way with people, you could look forward to an interesting role where no two days are the same with exciting career opportunities.

Our Perfect Worker

Our perfect worker will need to be aged 18 or over, a confident communicator who is a team player with the drive to provide a friendly and professional service at all times. Good IT knowledge is also key.

You will need to have an SIA licence.

Key Information and Benefits

- 5.6 weeks holiday per year, 8 of these will be in lieu of bank holidays (worked or not worked)
- Workplace Pension Scheme
- Great 4 Savings Employee Discount Scheme
- Progression, training and development opportunities
- End of year bonus scheme £2000

Job ref: 1G4S (G257)

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 Officer
Job role
SIA Security Officer
Client
G4S
Posted
21 Oct 2026
Closes
18 Nov 2026
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