Industrial Refrigeration Commissioning Engineer

Johnson Controls Industrial Refrigeration (IREF) division delivers project solutions, maintenance, and service support for customers in manufacturing, cold chocolate, and R&D testing environments. We are the OEM for SABROE, Frick Compressors, and York products.

As a Commissioning Engineer, you will be responsible for the start‑up and commissioning of industrial refrigeration systems, ensuring compliance with defined system parameters, regulations, standards, and procedures. You will work closely with sales, design engineers, and project managers to ensure systems are delivered and commissioned within scope and budget. This includes plant, equipment, pipework, refrigeration charges, and associated controls.

• Act as the primary technical contact for clients during commissioning activities.
• Support design and project teams with final design, scope, and specifications.
• Interpret design documentation and installation requirements for refrigeration systems.
• Apply knowledge of BS EN 378 (2016), Pressure Equipment Directive, Pressure Safety Systems Regulations, and DSEAR.
• Attend onsite reviews, keep customers informed, and guide suppliers and contractors.
• Ensure successful commissioning and client handover.
• Travel across the UK & Ireland as required.

• Previous experience within a similar role / proven track record commissioning ammonia and/or CO₂ plant.
• Strong understanding of screw compressors, pumps, evaporators, condensers, and associated equipment.
• Strong knowledge of system types and refrigerants – particularly systems operating on natural refrigerants.
• Experience with PLC/HMI‑based control systems and fault finding.
• Ability to read and interpret P&IDs, wiring diagrams, and commissioning plans.
• Comfortitness working independently on large‑scale industrial sites.

• Working knowledge of stmt[Pressure Systems Safety Regulations (PSSR)] and BS EN 378.
• F-Gas and Ammonia handling certificate.
• CO₂ (R744) System Training.
• NVQ Level 2 or 3 or City & Guilds in Refrigeration & Air Conditioning.
• Valid CSCS card.

• Competitive salary and overtime with premium rates.
• Company car, pension, and life assurance.
• Employee Assistance Program and mental health support.
• Referral scheme and discounts on Johnson Controls products.
• Voluntary benefits: childcare vouchers, cycle‑to‑work, eye care, holiday purchase.
• A culture promoting work‑life balance and professional development.