Fire Alarm Engineer - Small Works
Small Works Engineer – Fire & Security Systems
Region: London
On-Target Earnings: Up to £60,000 (inclusive of overtime, travel pay and bonuses)
Sign-On Bonus: £4,000
Join Trinity Fire & Security
Trinity Fire & Security is seeking an experienced Small Works Engineer to deliver high-quality installation, commissioning and technical support across a diverse portfolio of commercial clients.
You will install and commission a wide range of fire and security systems, ensuring compliance, reliability and exceptional customer service. You'll be supported by dedicated Coordinators and Technical Specialists, allowing you to focus on delivering outstanding engineering standards.
Why Join Trinity?
Regional coverage with reduced travel and improved work-life balance.
Uncapped earning potential through enhanced overtime and uncapped commission.
Ongoing manufacturer training with leading industry brands.
Clear career progression and long-term development opportunities.
Systems You'll Work With
Fire Systems: Gent, Notifier, Advanced, Protec and other open-protocol systems.
CCTV: Hikvision, Dahua, Avigilon.
Intruder Alarms: Galaxy, Texecom.
Access Control: Paxton, Honeywell, Gallagher.
Key Responsibilities
Carry out planned installation and commissioning on fire and security systems.
Diagnose faults and deliver effective, compliant solutions.
Provide professional technical advice and updates to customers.
Maintain accurate service records and documentation.
Ensure all work is completed in line with relevant standards and company procedures.
About You
Proven experience installing and commissioning fire alarm and/or electronic security systems.
Strong fault-finding and diagnostic skills.
Good knowledge of relevant British Standards.
Excellent communication and customer service skills.
Strong technical understanding with a focus on electrical safety (ECA or equivalent desirable).
Full UK driving licence.
What We Offer
Competitive basic salary with uncapped commission and paid overtime.
23 days' annual leave, increasing with service, plus bank holidays.
Company van and fuel card.
Employee Discount Programme with savings at over 800 retailers.
Pension, Life Assurance and Employee Assistance Programme.
Employee referral bonus of up to £2,000.
Ongoing training, manufacturer accreditations and career development opportunities.
Equal Opportunities in Practice
We are committed to equality of opportunity for all staff and applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief and marriage and civil partnerships.
Security Vetting
It is an industry requirement that successful candidates undergo security vetting. Offers of employment are subject to satisfactory vetting and may be withdrawn if the required standards are not met.
Armed Forces Covenant
PTSG Group is proud to support the Armed Forces community and has formally signed the UK Armed Forces Covenant.
We recognise the valuable skills and experience that service leavers, veterans, reservists, and military families bring to the workplace, including leadership, teamwork, resilience, and technical expertise.
As part of our commitment, we guarantee an interview to ex-Forces applicants who meet the minimum criteria for the role and are committed to supporting Armed Forces personnel in building long-term civilian careers.
Ind1
- Division
- Trinity Fire & Security Systems
- Department
- Install / Projects
- Locations
- London Central
- Employment type
- Full-time
Our jobs
London Central
Why work for us?
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Competitive salaries
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Life Assurance
3 x salary
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Vivup discounts
Access to Vivup discount centre, which includes: Gym memberships, Major retailers, Holidays, Meals out, Electronics, Cinema tickets, Days out and much more
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Professional Development
Opportunities to progress within each company and across the wider group. There are many examples of our staff moving between businesses for professional progression and career development.
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Work for a rapidly growing industry leader
In 2024 PTSG was 25 businesses, employing just over 2200 staff. Today (2026) we're over 30 companies employing 3300 staff and the fastest growing organisation within our field.
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Access to Online GP Appointments
Access a GP 24 hrs a day for all those unexpected emergencies
Our Vision
Here within PTSG's Fire Solutions Division:
We’re building something bigger than a group of companies.
Our vision is to create the most capable, connected and trusted fire safety division in the UK — where specialist expertise comes together to deliver smarter, safer and more reliable solutions for our customers.
At the heart of that vision is our people. By investing in skills, creating clear career pathways, and opening up opportunities across multiple disciplines, we’re not just growing a business — we’re building careers that last.
About Trinity Fire & Security Systems
Trinity Fire & Security has been helping businesses to ensure the safety of their people, properties, and business operations for over 25 years.
Using our extensive knowledge of fire, life safety and security systems, we will design a tailored solution to meet each client's individual needs. We pride ourselves in offering a full customer aftercare service ranging from traditional maintenance through to ensuring full legislative compliance