Height Safety Site Supervisor in London

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 Height Safety Supervisor to lead our height safety field teams, taking ownership of the quality, safety, and delivery of planned and reactive height safety works across our client portfolio. As Height Safety Supervisor you will be responsible for the day-to-day leadership of a team of Height Safety Engineers in the field. You will oversee the planning and execution of height safety inspections, installations, and reactive works, ensuring all activity is completed safely, compliantly, and to the standard our clients expect.

This is more than a supervisory role. It is about bringing the right energy, accountability and resilience to our mission of saving lives through fire and height safety — and setting the standard for everyone in your team.

Key Aspects of the Role

• Lead and supervise a team of Height Safety Engineers on planned and reactive works.
• Carry out and oversee inspections, installations, and maintenance of height safety systems including horizontal lifelines, anchor points, and fall arrest equipment.
• Ensure all works are delivered in line with relevant standards, RAMS, and Harmony’s health and safety requirements.
• Conduct site quality audits and checks, identifying and resolving non-conformances.
• Act as the key point of escalation and technical reference for engineers on site, providing guidance and making sure method statements and risk assessments are followed correctly on every job.
• Support the scheduling team with workload planning, site logistics, and remedial booking.
• Assist with the preparation of quotations, asset registers, and service records.
• Support the training, development, and performance of team members.
• Participate in the out-of-hours emergency callout rota as required.
• Liaise with project managers and clients professionally and proactively.

Key Requirements

• An A-player mindset — high standards, extreme ownership and the drive to do things properly, the first time.
• Proven experience in height safety installation, inspection, or maintenance, with previous supervisory or team lead experience preferred.
• Strong working knowledge of height safety systems including horizontal lifelines, anchor points, rope access, and fall arrest equipment.
• Relevant height safety qualifications such as IRATA, IPAF, or equivalent.
• PASMA and working at height certification.
• Good working knowledge of Microsoft Office including Word, Excel, and Outlook.
• Strong communication skills with the ability to manage a team and engage confidently with clients.
• Good time management with the ability to plan and prioritise across multiple works.
• A background in broader mechanical or electrical engineering or fire protection services (preferable).
• Full UK driving licence.

Why Work for Harmony

This is a chance to lead a field team at one of the UK’s fastest-growing height and fire safety specialists — with real autonomy on site, a strong support structure behind you, and a clear path to grow as we continue to expand. 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, a Personal Development Plan with ongoing training and mentoring, unlimited holiday, a bonus scheme paying up to 50% of annual salary, private medical insurance, enhanced maternity and paternity, lunch, snacks and refreshments on us every day at the office (fresh fruit and Takeaway Friday included), a team social budget, cycle to work, an auto-enrolment pension, two major 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 — 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.