An engineer working with technical equipment.

Project Engineer

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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

Problem solving

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

Compliance & Safety

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

Documentation

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

Project Engineer

London, United Kingdom

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Job ID : 7665

Job category : Engineering

Location : London, United Kingdom

Date posted : 12/12/2025

Closing date : 30/08/2026

Explore Location

G4S, an Allied Universal Company the leading global security and outsourcing group, specialises in outsourcing of business processes in sectors where security and safety risks are considered a strategic threat. G4S is the largest employer quoted on the London Stock Exchange and has a secondary stock exchange listing in Copenhagen. G4S has operations in more than 120 countries and over 620,000 employees. G4S Fire & Security Systems (UK) is the leading integrator of fire and security solutions with a fully accredited 24 x 7 monitoring centre for fire, security and location based services.

Main purpose of the role

Due to growth in our Integrated Security Systems business, an exciting opportunity has arisen for an Installation Project Engineer in our Fire & Security Systems division, focusing on Installation area of operations the position holder will be responsible for successfully installing high end Integrated security systems, whilst maintaining tight cost controls.

Responsibilities:

To undertake the management of electronic security systems installations. ∙ Undertake commissioning of systems when required.
To verify the detailed accuracy of equipment specifications at the “pre-installation” stage. ∙ To develop and manage site specific method statements and risk assessments where necessary and ensure that Health and Safety requirements are upheld ∙ To be responsible for compliance with regard to technical auditing and to manage compliance with quality standards & regulations
To ensure that systems are properly tested and commissioned and assist in the production O&M documentation.
To be highly motivated and work on your own, with an excellent attention to detail.

About you

Qualified electrical / electronics engineer / electrician.
Experience in the installation and commissioning of fire and security systems.
Intermediate IT skills including familiarity with MS Office and system related software.
Experience of IP CCTV/Access Control/Intruder Alarm Systems
Management of electrical contractors and company approved subcontractors.

Compensation Benefits

Salary £40,000

Company Car

25 days holiday

Company Pension Scheme

Perks at Work Scheme

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.

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.