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Security Officer

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?

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Site Supervisors and Operations Managers

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Close Protection/Bodyguards

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

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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.

Security Officer

London, United Kingdom

Job ID: 7561
Job category: Security Services
Location: London, United Kingdom
Date posted: 12/08/2025
Closing date: 13/03/2026

As a Specialist Executive Security Operative (SESO) with G4S, you won't be a standard Security Officer, you'll be fulfilling a strategic and specialised function, encompassing mobile patrol and rapid response duties. This critical role demands exceptional self-discipline, professionalism and soft management skills, and you will be operating as a key point of on-site primary liaison at a variety of different locations in Southern England (Home Counties).

Based out of Bracknell, you will be covering high value properties spread across the Home Counties to the South of London.

You must have a valid Door Supervisor license and a Full UK Manual Driving License to be considered for this role.

Contract Information:

Shift Pattern: You will be part of a 2 man team, working a 4-on, 4-off shift pattern
Hours per week: 42 hours a week, 12 hour shifts
SIA Licenses: Door Supervisor only 

Please note, you will need to upload an up to date CV to be considered for this position.

Your Time at Work:

Your core mission is to proactively and discretely fulfil a dynamic vehicular and on-foot patrol schedule to help ensure the safety and security of our customers' high-value premises, assets and personnel, while consistently delivering an uncompromising level of service. 

We pride ourselves on maintaining a secure environment within prestigious residential properties located in salubrious surroundings, and your contribution to maintaining these exacting standards is paramount. The role requires SESOs to provide a rapid, lawful and effective response to all security and safety incidents, rigorously adhering to established operational procedures and customer protocols.

Your duties will include:

- Respond to intruder alarm activations and emergency incidents. Manage emergencies and  incidents by acting as the primary first responder, remaining calm and assertive
- Perform lock and unlock services across multiple sites, as and when required
- Proactively monitor and secure designated premises (by vehicle and/or on foot) to maintain safety and security, applying developed situational awareness and keen observational skills
- Provide immediate support, respond to intruder alarm activations and address calls for service and emergencies, including instances of trespass or potential criminal activity. Collaborating effectively with local law enforcement and emergency services as required
- Conduct thorough perimeter checks and patrols to maintain the security of all buildings and grounds to detect signs of intrusion, vandalism or suspicious activity
- Key holding: safeguard and manage site keys responsibly in accordance with British Standard 7984.
- Ensure daily vehicle checks, maintenance and services are carried out
- Oversee incident management, manage key holding responsibilities, conduct investigations into suspicious activity and ensure accurate and timely incident reporting

Our Perfect Worker:

We are seeking a candidate with a proactive, collaborative work ethic with proven security knowledge and experience. You must be/have: 

- A confident communicator and team player with excellent IT skills.
- Flexible and available to fulfil a varied shift pattern, including nights and weekends.
-Strong communication and interpersonal skills
- Ability to remain calm under pressure
- Experience as a Mobile Security Officer (Preferred but not essential)

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
- Financial support for SIA Licence & renewal
- Contributory Healthcare Scheme
- Eye care vouchers
- Employee Discount Schemes, plus additional on-site benefits! 
- Progression, training & development opportunities
- Refer a friend scheme
- Free uniform provided

Job ref: G215

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!


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Success Profile

It takes someone special to be 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.

Security Officer/ Security Guard First Line Manager /Supervisor Operations Manager Contract Manager Regional Manager

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.

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Training & Development

We continually invest in the training and development of our employees so that they can reach their full potential.

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Flexibility

With a range of job types, whether it’s shift work, part or full time employment there is flexibility to suit your needs.

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Promote from within culture

At G4S we pride ourselves on fostering a promote from within culture.

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