A person in a bright yellow safety jacket stands outdoors, with a blurred urban background hinting at a busy environment.

Relief Security Officer

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G4S security officer in a light blue uniform with a red and black striped tie stands in a hallway with blurred lights in the background.

Overview of the role

As a professionally trained Security Officer for G4S, you could be a member of the security team responsible for securing premises, such as building sites, courts, shops, warehouses, banks and factories as well as ports and airports. You would be conducting foot or vehicle patrols, controlling access at points of entry, securing equipment and people, responding to emergency situations, monitoring CCTV and surveillance equipment and helping to identify and prevent criminal activity.

What else could you be doing?

Site Supervisors and Operations Managers

These roles play a pivotal role in managing the teams and their activities as well as liaising with our customers.

Close Protection/Bodyguards

We employ many ex armed forces personnel in to these roles as they have hugely valuable and transferable skills.

Music/Sporting Event Stewards

These are roles that are more likely to be part time, attracting students and those who cannot commit to full time work.

Relief Security Officer

London, United Kingdom

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Job ID: 8969

Job category: Security Services

Location: London, United Kingdom

Date posted: 13/04/2026

Closing date: 05/10/2026

Explore Location

Allied Universal are currently recruiting for a great opportunity to join as a Security Officer across corporate sites in London!

Contract Information:

Pay rate: £14 per hour.
Location: London
Hours - 24 hours (with scope for overtime).
Shift Pattern - 2 shifts per week, Full flexibility required Monday to Sunday, for day and night shifts. 7am to 7pm / 7pm to 7am.
SIA License Required: Door Supervisor.

Please note that you will need to have over one year of experience in a corporate security background to be considered for this position.

As a Relief Security Officer at this site, your duties will include:

- Patrols of the site, internally and externally
- Response to security breaches, first aid and fire alarms
- Access and Egress control
- Checking passes and ID badges
- Liaising with the customer
- Meet and Greet duties
- Incident report writing

You 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 hold a valid Door Supervisor SIA licence for this position.

- Excellent salary of £14 per hour
- 5.6 weeks paid holiday (8 of these will be in lieu of bank holidays - subject to shift pattern and accrual)
- Workplace pension scheme and life assurance benefit
- Employee Discount Schemes
- Progression, training & development opportunities
- Free uniform provided

Job Ref: 1ALS (L51)

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

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Success Profile

It takes someone special to be Relief Security Officer. Here are some of the qualities we're looking for in our team members:

Honesty & Integrity
Strong communication skills
Customer orientated
Teamwork
Caring
Reliable

Hear from one of our security guards

I love the variety and challenge that comes with working in Security at G4S. Every day is different, and I'm constantly learning new skills. The company provides excellent training and support, and I feel like my contributions are valued. I'm proud to be part of a team that is dedicated to keeping people and property safe.

G4S Security Officer
Australia

Career Path

Our Security Officer positions offer candidates a range of things to support the personal and professional development of our teams. There are countless examples of individuals who began their career on the front line and today hold management positions, including in our senior leadership teams.

Rewards and benefits

Our benefits vary from country to country and role to role and are designed to ensure our staff have access to the things they need to thrive both in and out of work. This includes on-the-job training, career paths to management and a range of benefits depending on locations around the world.