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

Security Officer

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Overview of role

Leverage your experience as a G4S security professional in this role. Our Security Officer roles vary and as such they allow you to apply your frontline expertise to a new environment, or perhaps for a new client, in a new industry; managing access control, surveillance, or emergency response in a different way.

As an internal candidate, you already understand our values and safety standards; this role provides an opportunity to sharpen those skills in a different operational context and broaden your internal network.

Where this role could take you

Site Supervisors and Operations Managers

Ready for the next step? Security Officers who excel in this role are set to be first in line for our Site Supervisor and Operations Manager positions where you’ll lead the teams you were once part of.

Specialised Roles

This role serves as a foundation for transitioning into other specialist security roles such close protection or aviation security. You will be well placed to continue to Gold standard you've already mastered.

Cross Sector Moves

Use this role to transition between sectors - for example moving from a retail environment to a high-security government facilty, or spend your days securing music and sports venue. The opportunities to expand your CV in G4S are endless.

Security Officer

Dorchester, United Kingdom

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Job ID: 10066

Job category: Security Services

Location: Dorchester, United Kingdom

Date posted: 17/07/2026

Closing date: 31/08/2026

Explore Location

We are currently recruiting for a Casual Security Officer to join the G4S team, working for a well-known site in Winfrith, Dorchester.

Contract Information:

Pay Rate: £14.88 per hour
Hours: Casual 12-hour per week position covering days, nights, and weekends as required
Shift Pattern: Days, 07:00am-19:00pm and Nights 19:00pm-07:00am
SIA Licence: Valid SIA Licence preferred

Applicants must have a full UK Driving Licence for this position.

You will be required to clear SC clearance to pass probation.

Please note that you must be over the age of 18 to apply for this role.

As a Security Officer, 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.

It’s a varied role that includes greeting staff and visitors and ensuring they adhere to the required security protocols, conducting searches where required, patrolling the premises, and dealing with security incidents. You’ll ensure visitors and staff are in a safe environment by de-escalating situations in a firm but respectful manner. 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 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.

It would be a benefit to have some security experience and your SIA licence, however it’s not essential, as we provide full SIA (Security Industry Authority) licence training.

- 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
- Eyecare vouchers
- Employee Discount Schemes
- Progression, training & development opportunities
- Refer a friend scheme
- Free parking in most locations
- Free uniform provided

Job Ref: 1G4S (G275)

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 a 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

Your Future Pathway

Your experience as a Security Officer is just the beginning. We don't just offer jobs - we offer growth - vertically or laterally to suit your career ambitions. 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.

Training & Development

We continually invest in the training and development of our employees so that they can reach their full potential. Check out the mylearning for more details.