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Technical Support Engineer

Portrait of a worker wearing a red hard hat and a yellow high-visibility jacket with the G4S logo.

Overview of the role

Whether you are specialising in Fire & Security, Electrical, Mechanical, or Systems Engineering, your role at G4S is about precision and reliability. You will be responsible for the installation, maintenance, and technical support of critical assets that keep our communities and businesses operational and secure.

Joining G4S means joining a team where your technical expertise directly contributes to the safety and security of the places we work and live.

Core responsibilities

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Problem solving

Diagnosing complex technical faults and identifying the most efficient, long-term solutions while adhering to strict SLAs and KPIs.

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Compliance & Safety

Working to the highest Health & Safety standards, ensuring all works meet regulatory requirements and site-specific policies.

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Documentation

Maintaining accurate, real-time technical records and reports via PDA or service management systems to provide transparency to our clients.

Technical Support Engineer

Cheltenham, United Kingdom

Job ID : 9687
Job category : Engineering
Location : Cheltenham, United Kingdom
Date posted : 06/11/2026
Closing date : 09/04/2026


Technical Support Engineer Fire & Security Systems - Cheltenham

Excellent Salary & Benefits

About us

G4S is a global company operating across 120 countries, employing over 650,000 people across the world. You can find more about us here; https://www.g4s.com/en-gb

We are at the forefront of the fire and security integrator market in the UK and have an enviable reputation for excellence and client portfolio. Typical clients include Government, Utilities, Healthcare, MOJ and MOD to name a few.

What will you be doing

Provide comprehensive remote and on-site support across the UK for on-premises IT infrastructure. Specialize in managing secure and controlled IT systems, with expertise in offline patching and update management processes.

To support and maintain the infrastructure of a Microsoft Hyper-V environment, including virtual SAN solutions and system applications.

To complete system checks that include hardware, performance, configuration, asset inventory and database backups.

To meet customer compliance and certification by following strict and rigorous policies and change control procedures for any / all system changes.

To conduct the planning, testing, installation and rollout of system updates (Servers, Clients, Network, Applications, etc..) on pre production and production.

To be a point of escalation for system issues and unplanned Headend faults.

To investigate, troubleshoot and resolve system faults that fall under 1st - 3rd support tasks and to liaise with software/hardware suppliers to resolve issues.

To maintain accurate, real time records of site based interactions in Tesseract Service Centre providing customers and other G4S employees with all relevant information in a timely manner (call log numbers, progress updates etc.)

To maintain accurate and timely records of all technical issues in the company fault recording system.

Provide technical reference services (i.e. technical manual lookup) to field based engineers on IT equipment and a range of 3rd party Access Control, Video Surveillance, Visitor Management and Intruder Systems.

Keep up-to-date with various 3rd party technology products. This may involve self-learning and a willingness to participate in internal and/or external training courses which may involve out of hours working.

What we are looking for

Ideally experience with enterprise level equipment such as C-Cure, Lenel. AMAG, Milestone, Genetec.

Commercial awareness.

Confident in liaising with on site security teams.

There is also some must haves

Must be able to pass BS7858 screening.

Clean full UK driving license, with no more than 6 points.

Enhanced DBS.

Some government sites will require further screening.

What are the benefits of working with G4S

Excellent Salary

Matched pension scheme.

25 days holiday plus 8 bank holidays.

Life assurance scheme.

Extensive further product & H&S training.

Perks at work scheme.

Career progression.


You will just need to complete the following application form and one of our Recruiters will be in touch to discuss the next steps. Our recruitment and selection process will include an interview and screening to BS7858 standards.

Given the nature of the industry, we do need to ask some questions for security and compliance purposes, but don’t worry - you will only need to complete them once.

In 2021, G4S, a London-based global security company, was acquired by Allied Universal®, a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security solutions. This acquisition expanded Allied Universal’s footprint and infrastructure on a global and local level. Through a global workforce of approximately 800,000 people*, we leverage best practices in communities all over the world. With revenue of approximately $20 billion, we have the resources to deploy efficient processes and systems to help deliver our promise locally: keeping people safe so our communities can thrive. In Europe, we have an extensive network of offices and more than 46,500 employees to support our local communities and customers.  We believe there is no greater purpose than serving and safeguarding customers, communities and people in today’s world. Allied Universal is There for you™. For more information, please visit www.g4s.com or www.aus.com.

*Total workforce includes employees and subcontractors

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Success profile

It takes someone special to be a G4S Engineer. We are looking for engineers who take pride in their craft and are committed to continuous learning. Our successful engineers share these core traits:

  • Technical excellence
  • Analytical mindset
  • Adaptability
  • Quality focused
  • Strong communication skills
  • Reliable

Career path

As a G4S Engineer, you are part of a global team that values your technical expertise. Our Engineering positions offer a range of opportunities to support the personal and professional development of our teams. We invest in your technical growth, providing the pathway for you to move from a specialist technician into senior operational leadership.

Engineer/ Technician Lead Engineer/ Qualifying Supervisor Technical Operations Manager Account/ Contract Manager Head of Engineering/ Regional Director

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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Rewarding compensation

Competitive base salary with opportunities for overtime and on-call allowances.

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Promote from within culture

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

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