Site Supervisor

Johnson Controls; Newcastle upon Tyne; On-site; GBP 40,000 - 60,000; Full time

Benefits offered by this job

Competitive salary and commission

Company vehicle, fuel card, and PPE

Door‑to‑door payments

Overtime and call-out rota

25 days holiday + bank holidays

7% matched pension + life assurance +

Employee assistance programme

Discounts on Johnson Controls products

Cycle-to-work scheme

Employee referral scheme

Training and cross‑skilling

Access to business resource groups

Collaborative team culture

Long-term career development pathways

Job summary

Johnson Controls is seeking an experienced Site Supervisor for a Teesside static site. The role combines hands‑on maintenance with team leadership across fire detection, gas suppression, and mechanical suppression systems.

You will manage on‑site engineers, coordinate subcontractors, uphold safety standards, and maintain strong client relationships while delivering high‑quality service and documentation.

Qualifications

• Strong experience with fire detection and fire alarm systems.
• Experience with gas suppression systems.
• Understanding of mechanical fire suppression equipment.
• Ability and willingness to carry out hands-on maintenance and servicing.
• Previous supervisory or team leadership experience.
• Excellent communication and customer service skills.
• Ability to inspire, influence, and build strong working relationships.
• Proactive approach to problem-solving.
• Full UK driving license.
• Flexibility to travel for training.
• Strong organisational skills and attention to detail.

Responsibilities

• Lead, support, and coordinate on-site engineers and subcontractors.
• Build strong relationships with the client and ensure high levels of customer satisfaction.
• Act as the main point of escalation for technical or operational issues.
• Monitor subcontractor performance and ensure all work meets required standards.
• Support the coaching, development, and onboarding of engineers and apprentices.
• Personally carry out maintenance, servicing, fault‑finding, and repairs on fire alarm systems.
• Support and oversee works on gas suppression and mechanical suppression systems.
• Perform integrity testing (training provided if required).
• Assist with estimating, commissioning, and client training where required.
• Identify and communicate remedial works, system deficiencies, and upgrade opportunities.
• Ensure accurate completion of all on-site documentation, daily work diaries, and service reports.

Skills

Fire alarm systems

Gas suppression systems

Mechanical suppression equipment

Leadership

Hands-on maintenance

Communication

Job description

Site Supervisor - Teesside (Static Site)

Join a global leader in fire and safety solutions

Johnson Controls isseekingan experienced and proactive Site Supervisor with a strong fire alarm engineering background to oversee and support the delivery of fire alarm servicing, gas suppression systems, and mechanical suppression systems at a key static site in Teesside.

This role is ideal for someone who is not only confident leading others but is also technicallyhands-on, able to carry out maintenance tasks themselves, and committed tomaintainingthe highest standards of safety, compliance, and service delivery.

About the Role

As the Site Supervisor, you will lead a team ofon‑siteengineers and subcontractors while also completing your own planned and reactive maintenance tasks. You will ensure the effective delivery of all fire detection, gas suppression, and mechanical suppression services across the site.

You willbe responsible forplanned preventative maintenance, routine servicing,fault‑finding, and remedial works on a range of systems, including:

• Conventional and addressable fire detection systems

• Networked and graphical fire alarm systems

• Gas extinguishing systems (e.g.,Argonite, CO₂,Inergen, Novec)

• Mechanical fire suppression equipment and fire extinguishers

You will act as the primaryon‑sitepoint of contact, ensuring smooth operations, strong client relationships, and full compliance withsite‑specificsafety and quality standards.

What We Offer

• Competitive salaryand commission scheme

• Company vehicle, fuel card, and full PPE

• Door‑to‑doorpayments

• Overtime andcall‑outrota payments

• 25 days holiday plus bank holidays

• 7% matched pension contributions, life assurance, and employeeassistanceprogramme

• Discounts on high street brands and Johnson Controls products

• Cycle‑to‑workscheme

• Employee referral scheme

• Extensive training andcross‑skillingopportunities

• Access to business resource groups

• Supportive, collaborative team culture

• Clearlong‑termcareer development pathways

Key Responsibilities

Leadership & Site Management

• Lead, support, and coordinateon‑siteengineers and subcontractors

• Build strong working relationships with the client and ensurehigh levelsof customer satisfaction

• Act as the main point of escalation for technical or operational issues

• Monitor subcontractor performance and ensure all work meets required standards

• Support the coaching, development, and onboarding of engineers and apprentices

Technical Delivery (Hands‑On)

• Personally carry out maintenance, servicing,fault‑finding, and repairs on fire alarm systems

• Support and oversee works on gas suppression and mechanical suppression systems

• Perform integrity testing (training provided ifrequired)

• Assistwith estimating, commissioning, and client training whererequired

• Identifyand communicate remedial works, system deficiencies, and upgrade opportunities

• Ensureaccuratecompletion of allon‑sitedocumentation, daily work diaries, and service reports

Technical Delivery (Hands‑On)

• Personally carry out maintenance, servicing,fault‑finding, and repairs on fire alarm systems

• Support and oversee works on gas suppression and mechanical suppression systems

• Perform integrity testing (training provided ifrequired)

• Assistwith estimating, commissioning, and client training whererequired

• Identifyand communicate remedial works, system deficiencies, and upgrade opportunities

• Ensureaccuratecompletion of allon‑sitedocumentation, daily work diaries, and service reports

Safety & Compliance

• Conduct safety and quality audits to ensure compliance with legislation and company standards

• Ensure all engineers followsite‑specificsafety andhigh-hazard environment requirements

• Promptlyidentifyand report health and safety concerns, near misses, and site hazards

• Attend mandatory training andmaintainup‑to‑datecertifications

• Ensure full adherence to RAMS, PPE requirements, toolbox talks, van audits, and accident investigations

• Promote azero‑harmculture and drive continuous improvement in safety performance

WhatWe’reLooking For

Essential

• Strong experience working withfire detection and fire alarm systems(primary skillset)

• Experience withgas suppression systems

• Understanding ofmechanical fire suppression equipment

• Ability and willingness to carry out hands‑on maintenance and servicing

• Previoussupervisory or team leadership experience

• Excellent communication and customer service skills

• Ability to inspire, influence, and build strong working relationships

• Proactive approach to problem‑solvingand unexpected situations

• Full UK driving license

• Flexibility to travel for training whenrequired

• Strong organisational skills and attention to detail

Desirable

• Experience in highly regulated orhigh-hazard environments

• Knowledge of passive fire protection

• Experience coaching or developing engineers

Make a Real Impact

At Johnson Controls, we don't just maintain systems - we help create safer environments. If you're ready to take the next step in your career and lead a high-performingteam while remaining technicallyhands-on, we'd love to hear from you.