Senior Fire Engineer (London/M25 Corridor)

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 looking for a Senior Fire Engineer to join our Service Delivery team, covering London and the M25 corridor. You will carry out planned and reactive maintenance, inspection, and commissioning of fire safety systems across a diverse portfolio of residential, commercial, and public sector clients — working to the highest technical and quality standards on every visit. 

This is a field-based role. You will be the technical lead on your sites — responsible for the quality of your work, the accuracy of your certification, and the confidence our clients place in Harmony. If you take pride in your craft, hold yourself to a high standard, and want to be part of a business genuinely committed to saving lives — read on.