Fire Alarm Commissioning Engineer at Trinity Fire & Security Systems in London, England, United Kingdom | Kablio

Role

Description

customer service

site works

commissioning

customer communication

stakeholder liaison

To always provide outstanding customer service.
Carry out all necessary works required at customer premises in accordance with the Company’s quality standards.
Work to a planned commission and small works schedule.
Effectively communicate with customers to ensure a good understanding of system and site status.
Liaise with works administrators and other internal stakeholders to ensure our commitments are met.

Requirements

fault diagnosis

fire alarm

communication

cable testing

electrical safety

commissioning

A logical approach to system fault diagnosis and rectification.
Understand the basic building services to test cause and effect of fire alarm interfaces.
Excellent verbal and written communication.
Ability to identify all types of cable associated with fire detection systems, and to correctly test and terminate the cable ends in accordance with manufacturers’ instructions.
Basic Electrical Safety training (ECA)..
Experience in commissioning, installing and completing small works fire alarm systems to relevant British Standards.
A comprehensive understanding of the causes and cures of fire alarm problems, including an ability to recommend changes to practices and processes that may cause false alarms as well as recommending changes to the systems.

Benefits

23 days holiday which increases with service, plus bank holidays
Employee referral scheme – earn up to £2,000 for each employee you bring into Trinity
Pension scheme via Royal London
Life Assurance
Access to an employee discounts programme which includes discounts and cashback across over 800 national retailers
Competitive base salary, plus our uncapped engineer commission scheme
Company vehicle plus fuel card
Paid overtime and travel time (minus 30 minutes each way)
Employee Welfare assistance programme

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

successful candidates must undergo security vetting; employment is contingent on satisfactory vetting.

Company

Overview

Founded 1997

Year Established

Began as a regional specialist installing fire detection systems.

Revenue £60M

Annual Revenue

Exceeds £60 million annually.

Cloud Migration 2021

IT Infrastructure Update

Moved to cloud-based DRaaS for scaling and data resilience.

It grew into a turnkey provider, offering design, installation, commissioning, and full aftercare for fire, safety, and security solutions.
Headquartered in Exeter, it later became a key pillar of PTSG’s Fire Solutions division following its 2019 acquisition.
Notable projects include system upgrades at Heathrow T3, Oxford University Hospitals, University of Hertfordshire, Selfridges, and York Magistrates’ Court.
The company partners with top-tier manufacturers like Honeywell (Gent, Notifier), Hochiki, Ansul, Tyco FireClass, Milestone, Axis, Avigilon, SALTO, CEM and Gallagher.
Highly accredited (e.g., BAFE SP101, LPS1014, NSI Gold), Trinity pairs technical excellence with rigorous legislative compliance.
From standalone residential alarms to integrated, multi-site commercial platforms, Trinity tailors each solution to project needs.

Culture + Values

NSI Gold

Accreditation Recognition

Award-winning recognition for exceptional service quality and operational excellence.

Invest in the continued development of team members and reward hard work and dedication.
Success is due to dedicated and hardworking team members.
Customer‑focused: design tailored solutions, robust partner evaluation, deliver full aftercare and legislative compliance.

Environment + Sustainability

100% Recycled Packaging

Sustainable Packaging Initiative

Switched to 100% recycled cardboard and fibre-based materials for packaging.

19 Trees Planted

CO₂ Sequestration Initiative

Planted 19 trees to offset carbon emissions through a supplier partnership.

1,000kg CO₂ Reduction

Cycling-to-Work Scheme

Employee cycling initiative reduces carbon emissions and promotes health.

2030 Net Zero Target

Carbon Neutrality Commitment

Aiming to achieve net zero carbon emissions across all operations by 2030.

ISO 14001 accredited; committed to high environmental performance and compliance with legislation.
Fully removed all non-recyclable plastic from packaging; switched to fibre-based tape, recycled pallet wrap and straps.
Installed cardboard shredder in warehouse to eliminate plastic packaging and generate eco-friendly filler.
Switched office consumables to bamboo products (hand towels, toilet paper).
Heathrow and MoD Aldershot offices achieved Net Zero Carbon for 2022–2023.

Inclusion & Diversity

No DEI strategy or gender statistics publicly disclosed.

Articles

Our Services

Careers

Role

Description

customer service

site works

commissioning

customer communication

stakeholder liaison

To always provide outstanding customer service.
Carry out all necessary works required at customer premises in accordance with the Company’s quality standards.
Work to a planned commission and small works schedule.
Effectively communicate with customers to ensure a good understanding of system and site status.
Liaise with works administrators and other internal stakeholders to ensure our commitments are met.

Requirements

fault diagnosis

fire alarm

communication

cable testing

electrical safety

commissioning

A logical approach to system fault diagnosis and rectification.
Understand the basic building services to test cause and effect of fire alarm interfaces.
Excellent verbal and written communication.
Ability to identify all types of cable associated with fire detection systems, and to correctly test and terminate the cable ends in accordance with manufacturers’ instructions.
Basic Electrical Safety training (ECA)..
Experience in commissioning, installing and completing small works fire alarm systems to relevant British Standards.
A comprehensive understanding of the causes and cures of fire alarm problems, including an ability to recommend changes to practices and processes that may cause false alarms as well as recommending changes to the systems.

Benefits

23 days holiday which increases with service, plus bank holidays
Employee referral scheme – earn up to £2,000 for each employee you bring into Trinity
Pension scheme via Royal London
Life Assurance
Access to an employee discounts programme which includes discounts and cashback across over 800 national retailers
Competitive base salary, plus our uncapped engineer commission scheme
Company vehicle plus fuel card
Paid overtime and travel time (minus 30 minutes each way)
Employee Welfare assistance programme

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

successful candidates must undergo security vetting; employment is contingent on satisfactory vetting.

Company

Overview

Founded 1997

Year Established

Began as a regional specialist installing fire detection systems.

Revenue £60M

Annual Revenue

Exceeds £60 million annually.

Cloud Migration 2021

IT Infrastructure Update

Moved to cloud-based DRaaS for scaling and data resilience.

It grew into a turnkey provider, offering design, installation, commissioning, and full aftercare for fire, safety, and security solutions.
Headquartered in Exeter, it later became a key pillar of PTSG’s Fire Solutions division following its 2019 acquisition.
Notable projects include system upgrades at Heathrow T3, Oxford University Hospitals, University of Hertfordshire, Selfridges, and York Magistrates’ Court.
The company partners with top-tier manufacturers like Honeywell (Gent, Notifier), Hochiki, Ansul, Tyco FireClass, Milestone, Axis, Avigilon, SALTO, CEM and Gallagher.
Highly accredited (e.g., BAFE SP101, LPS1014, NSI Gold), Trinity pairs technical excellence with rigorous legislative compliance.
From standalone residential alarms to integrated, multi-site commercial platforms, Trinity tailors each solution to project needs.

Culture + Values

NSI Gold

Accreditation Recognition

Award-winning recognition for exceptional service quality and operational excellence.

Invest in the continued development of team members and reward hard work and dedication.
Success is due to dedicated and hardworking team members.
Customer‑focused: design tailored solutions, robust partner evaluation, deliver full aftercare and legislative compliance.

Environment + Sustainability

100% Recycled Packaging

Sustainable Packaging Initiative

Switched to 100% recycled cardboard and fibre-based materials for packaging.

19 Trees Planted

CO₂ Sequestration Initiative

Planted 19 trees to offset carbon emissions through a supplier partnership.

1,000kg CO₂ Reduction

Cycling-to-Work Scheme

Employee cycling initiative reduces carbon emissions and promotes health.

2030 Net Zero Target

Carbon Neutrality Commitment

Aiming to achieve net zero carbon emissions across all operations by 2030.

ISO 14001 accredited; committed to high environmental performance and compliance with legislation.
Fully removed all non-recyclable plastic from packaging; switched to fibre-based tape, recycled pallet wrap and straps.
Installed cardboard shredder in warehouse to eliminate plastic packaging and generate eco-friendly filler.
Switched office consumables to bamboo products (hand towels, toilet paper).
Heathrow and MoD Aldershot offices achieved Net Zero Carbon for 2022–2023.

Inclusion & Diversity

No DEI strategy or gender statistics publicly disclosed.

Articles

Our Services

Careers