Mechanical Installation Engineer

We are seeking an experienced Mechanical Installation Engineer to join our fire suppression delivery team, working on complex and safety-critical projects across the UK and internationally. This role focuses on the installation and commissioning of mechanical fire protection systems, including water-based, gas, foam, and hydrant systems, often within live or high-risk environments.

This is a hands-on, site-based role suited to a mechanically strong engineer who values safety, quality, and technical excellence.

What We Can Offer

• Competitive salary, company car and bonus

• Hybrid working – site / office / WFH

• 25 days paid holiday plus bank holidays and sick pay

• Comprehensive benefits package including 7% matched pension, life assurance, employee assistance program, employee referral scheme, employee discounts including high street brands, cycle to work scheme, and discount on Johnson Controls security products

• Extensive product and on-the-job/cross-training opportunities with outstanding resources available

• Encouraging and collaborative team environment

• Career development through various career ladders including Customer Service

Key Responsibilities

Installation & Commissioning

• Install, test, commission, and hand over mechanical fire suppression systems, including: Deluge systems, Hydrant systems, Gas suppression systems, Foam suppression systems

• Carry out system flushing, pressure testing, flow testing, and functional testing in line with approved procedures.

• Diagnose and resolve installation, performance, or commissioning issues on-site.

• Support pre-commissioning inspections, system demonstrations, and final client acceptance testing.

• Ensure installations align with approved drawings, specifications, and applicable standards.

Critical & High-Risk Environments

• Work within live and mission-critical sites, such as: Data centres, Power generation facilities, Industrial plants, Energy and high-hazard environments

• Adhere to strict permit-to-work, lockout/tagout, and site-specific safety controls.

• Plan and execute works to minimize risk and disruption to live systems and operations.

Health, Safety & Compliance

• Maintain full compliance with company and site Health & Safety policies.

• Review and contribute to RAMS, commissioning plans, test records, and completion documentation.

• Ensure all works meet relevant legislation, standards, and client-specific requirements.

• Promote a strong safety-first culture on-site.

Collaboration & Reporting

• Liaise effectively with Project Managers, Site Supervisors, Clients, and Subcontractors.

• Provide accurate progress updates, technical feedback, and commissioning support.

• Assist with snagging, system optimisation, and post-handover technical support when required.

Travel & Working Away

• Travel extensively across the UK using a company service van.

• Willingness to work away from home, including overnight stays.

• Flexibility to work out-of-hours, weekends, or during planned shutdowns and commissioning windows.

• Potential for international travel depending on project requirements.

Skills & Experience

Essential

• Proven experience installing and commissioning mechanical fire suppression systems, particularly deluge systems.

• Strong mechanical background, including: Pipework, Valves, Pumps, Actuated/mechanical control systems

• Experience working in critical or high-risk environments.

• Ability to read and interpret mechanical drawings and specifications.

• Full UK driving license.

• Strong commitment to health, safety, and quality workmanship

Desirable

• Knowledge of fire protection standards and approvals, such as: LPC, NFPA, FM, BS and EN standards

• Experience with fire pumps, control valves, and system interfaces.

• CSCS card or equivalent.

• Additional safety certifications such as: Confined Space, IPAF, PASMA

• Other relevant construction or site-based qualifications.

Who We Are

At Johnson Controls, we’re shaping a safer, smarter, more sustainable world. Our global team delivers innovative, integrated solutions that make buildings more intelligent, cities more connected, and environments more efficient. We’re driven by bold ideas, collaboration, and a commitment to improving how people live, work, and thrive.

Ready to take the next step?

Join a team dedicated to protecting what matters most and help deliver the future of fire suppression. Your tomorrow starts here.

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