Harmony Fire
Senior Sprinkler Service Engineer
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Department: Building Fabric - Delivery
Employment Type: Full Time
Location: London
Description
Harmony is on a mission to be the best life safety partner to work with and for. Rated an ‘Outstanding Employer’ by Best Companies in 2025, we are only getting bigger and stronger — and we’re looking for A-players to help us get there.
We are passionate about making a difference and obsessed with quality. Our goal is to build a world where every resident can sleep safely at night, knowing their home is 100% safe.
We are now looking for a Senior Sprinkler Service Engineer to lead from the front on our most complex sprinkler installations and service contracts. Based out of the Midlands with a nationwide remit, you will be responsible for the installation, commissioning, testing and maintenance of fire sprinkler systems — setting the bar on quality, safety and technical standards across the M&E service team and mentoring less experienced engineers along the way.
Working in accordance with BS 9251:2021 and applicable industry standards, you will play a key role in delivering high-quality life-safety systems to our clients. This is more than just a site role: it is about bringing the right energy, accountability and resilience to our mission of saving lives through fire and height safety.
Key Responsibilities
- Lead from the front on the most complex sprinkler installations, commissioning and service works, setting the technical bar for the wider engineering team.
- Install, commission, test and maintain domestic and residential fire sprinkler systems in line with BS 9251:2021.
- Carry out works across a variety of project types including residential and social housing, hospitals, schools, HMOs, care homes and student accommodation.
- Read and interpret technical drawings, schematics and project specifications, and confidently challenge designs where they don’t reflect site reality.
- Ensure all installations comply with relevant British Standards, industry codes of practice and client specifications.
- Conduct system testing and commissioning, completing all associated documentation accurately and to audit standard.
- Carry out fault-finding, servicing and remedial works on complex existing sprinkler installations.
- Provide technical guidance, coaching and on-site support to apprentices, less experienced engineers and subcontractors — raising the standard across the team.
- Act as a senior technical point of reference for the M&E service team, supporting service managers with quotes, scope queries and technical escalations.
- Liaise professionally with site managers, main contractors and clients, representing Harmony at senior level on site.
- Maintain accurate records and complete all required paperwork, including risk assessments and method statements.
- Work safely at all times, adhering to company health & safety policies, site rules and relevant legislation.
- Participate in the out-of-hours call-out rota as required.
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Skills, Knowledge And Expertise
- An A-player mindset — high standards, extreme ownership and the drive to do things properly, the first time.
- Significant experience as a Fire Sprinkler Fitter or Engineer in residential or domestic settings, with a proven track record on complex installations.
- Deep working knowledge of BS 9251:2021 (Fire Suppression Systems for Dwellings – Code of Practice) and related British Standards.
- Experience working across multiple sectors, including residential / social housing, hospitals, schools and HMOs.
- Experience of wet, dry and alternate sprinkler systems.
- Confident leading on technical decisions and coaching less experienced engineers.
- Excellent ability to read and work from technical drawings and specifications.
- Strong understanding of health & safety practices on construction and occupied sites.
- Excellent written and verbal communication skills, comfortable representing Harmony with clients at senior level.
- Self-directed and able to manage your own workload and that of supporting engineers effectively.
- Full UK driving licence.
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Nice to Have
- RSA (or similar) Fire Sprinkler Installation Course.
- IPAF, PASMA or working at height qualifications.
- CSCS / JIB card.
- First Aid certificate.
- Previous mentoring, supervisory or team lead experience.
- Experience contributing to service quotes, scope queries or technical escalations.
Benefits
This is a chance to lead from the front on life-safety systems for one of the UK’s fastest-growing fire safety specialists — setting the technical bar, mentoring the next generation of engineers, and seeing your installations protect real people in their homes. At Harmony, we ask a lot — and we give a lot back. The hours are real, the standards are high and the work is demanding, but for those who show up, deliver and go the extra mile, the rewards follow. A-players here enjoy a competitive salary, a company vehicle, private medical insurance, a Personal Development Plan with ongoing training and mentoring, unlimited holiday, a bonus scheme paying up to 50% of annual salary, enhanced maternity and paternity, catered lunch every day at the office (fresh fruit and Takeaway Friday included), a team social budget, cycle to work, an auto-enrolment pension, two company events a year and our Reward and Recognition scheme — including European mini-breaks for those who go above and beyond. It is a collaborative, high-energy environment focused on doing things the right way — technically, practically and safely — and none of it is a perk for showing up; it’s what we share with the people pulling the business forward.
Harmony is an equal opportunity employer. We consider all applicants for employment regardless of age, disability, sexual orientation, gender identity, family or parental status, race, colour, nationality, ethnic or national origin, religion or belief. We want everyone who works with us to feel valued and to make a difference.
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