Fire Alarm & Fire Suppression Small Works / Service Engineer

Ideal Candidate

You will be a technically strong, safety-conscious engineer with experience across fire alarm, ASD, gas suppression, and water mist systems. You will be confident working alone within HV substations and critical infrastructure environments, maintaining high standards of compliance and professionalism at all times.

This role offers long-term progression and specialist training for the right individual looking to further develop within the suppression and critical infrastructure sector.

Role Overview

We are seeking an experienced Fire Alarm & Fire Suppression Small Works / Service Engineer to join our London-based team. The role involves servicing, maintenance, fault-finding, small works installations, system upgrades, and cylinder service exchange coordination across a wide range of fire detection and fixed suppression systems.

A significant proportion of works are carried out within high-voltage (HV) environments. These sites are typically unmanned, so the successful candidate must be confident working independently, maintaining exceptional safety standards, and following strict site procedures at all times.

This role offers long-term development opportunities, including specialist training (e.g. confined space, room integrity testing, manufacturer courses).

Key Responsibilities

High Voltage & Critical Infrastructure Environments

• Carry out works within HV substations and critical infrastructure sites

• Work safely and independently in unmanned environments

• Adhere strictly to site safety rules, RAMS, and permit-to-work systems

• Maintain clear communication with control centres and site contacts

• Ensure full compliance with health & safety legislation and client procedures

Fire Alarm Systems

• Service, fault-find, and maintain conventional and addressable fire alarm systems

• Panel upgrades, system extensions, additional device installations, and small works modifications

• Cause & effect testing and system commissioning

Experience required with:

• Advanced MxPro 4 and 5

• Notifier ID3000, Pearl and Inspire (Inspire Training Provided)

• Kentec Syncro, Syncro AS, Syncro XT, Sigma XT+, Sigma XT, Sigma ZXT

• Morley Dxc, ZXE, Max

• Protec 6400 and 6500

Aspirating Smoke Detection (ASD) Systems

• Service and commission ASD systems

• Airflow testing, pipe inspections, and configuration

Experience with:

• Xtralis (VESDA range)

• Wagner

• FAAST

Fire Suppression Systems

Gas Suppression

Service and maintenance of:

• CO₂ systems

• Inert Gas systems (IG-55, IG-541 etc.)

• Chemical/Clean Agent systems (FM-200, Novec 1230 or equivalent)

• Condensed Aerosol systems

Duties include:

• Inspection of cylinders, actuators, nozzles, pilot lines, and control interfaces

• Electrical and mechanical fault finding

• Cause & effect testing and discharge simulations

• Interface testing between fire alarm and suppression systems

High-Pressure Water Mist Systems

• Service and maintenance of pump and cylinder-based systems

• Experience with:

  • Marioff

  • Danfoss pump systems

• Inspection of pumps, valves, pipework, and nozzles

• Mechanical and electrical diagnostics

Cylinder Service & Exchange Coordination

• Assist with cylinder removal and replacement

• Coordinate servicing/refilling with approved suppliers

• Arrange transport and deliveries (primarily London & surrounding areas)

• Ensure compliance with regulations relating to pressurised cylinders

• Minimise system downtime through effective planning

Room Integrity Testing

• Experience or training in room integrity (door fan) testing desirable

• Training can be provided for the right candidate

General Responsibilities

• Deliver small works and remedial upgrades

• Complete service reports and compliance documentation accurately

• Maintain company vehicle, tools, and equipment

• Participate in call-out rota (if required)

Essential Skills & Experience

• Proven experience in fire alarm and suppression servicing

• Strong electrical and mechanical fault-finding skills

• Experience working independently in high-risk or HV environments

• Ability to follow strict safety procedures

• Full UK driving licence

Desired Qualifications & Training

• FIA training modules (fire alarm and/or suppression)

• City & Guilds electrical qualifications

• 18th Edition Wiring Regulations

• Manufacturer training (e.g. LE2 or equivalent panel training)

• ECS / CSCS card

• Confined space training (or willingness to undertake training)

• Room integrity testing certification (desirable but training available)

• Employee Performance bonus Scheme
• Westfield Health cash plan.
• Pension scheme.
• 22 days annual leave plus bank holidays, increasing by 1 day per year of service up to 25 days.