Site Supervisor - Johnson Controls

Site Supervisor – Teesside (Static Site)

Join a global leader in fire and safety solutions. Are you an experienced supervisor with strong mechanical skills and a passion for delivering exceptional service? Johnson Controls is looking for a Site Supervisor to join our dedicated team at a key static site in Teesside. This is a fantastic opportunity to work with advanced fire suppression technologies in a highly regulated environment where safety, reliability, and professionalism are paramount.

As a Site Supervisor, you’ll lead a team of on-site engineers and subcontractors, ensuring the effective delivery of mechanical fire suppression services across the site. You’ll oversee preventative maintenance, routine servicing, and remedial works on a range of fire detection and gas suppression 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’ll be the driving force behind maintaining high safety standards, excellent customer service, and smooth operational performance.

• Competitive salary
• Company vehicle, fuel card, and full PPE
• 25 days paid holiday plus bank holidays, plus paid sick leave
• 7% matched pension contributions, free life assurance, and employee assistance programme
• Discounts on high‑street brands and Johnson Controls security products
• Cycle‑to‑work scheme
• Extensive training and cross‑skilling opportunities with world‑class resources
• Supportive, collaborative team culture with access to business resource groups
• Long‑term career development and progression opportunities

• Lead and support engineers and subcontractors on site
• Deliver maintenance, servicing, and repair activities across fire detection and gas suppression systems
• Assist with design, estimating, integrity testing, commissioning, and client training
• Monitor subcontractor performance and manage site documentation
• Conduct safety and quality audits, ensuring compliance with legislation and company standards
• Report near misses and H&S issues promptly
• Maintain daily work diaries and provide weekly updates
• Promote Johnson Controls’ culture of inclusivity, diversity, and empowerment
• Build strong client relationships and ensure high levels of customer satisfaction

• Excellent communication and customer service skills
• Strong people management abilities with experience supervising teams
• Proactive approach to unexpected situations and problem‑solving
• Ability to inspire, influence, and build strong working relationships
• Full UK driving licence (essential)
• Experience with gas suppression systems (desirable)
• Mechanical fire suppression experience (desirable)
• Previous supervisory experience (desirable)

At Johnson Controls, we don’t just maintain systems — we create safer environments. If you’re ready to take the next step in your career and make a meaningful difference every day, we’d love to hear from you.

Apply now and join our team in Teesside.