Mobile Industrial Refrigeration Engineer (Ammonia + CO₂) Location: East London / M25 Corridor (Dartford) or West Midlands Salary: £45,000 - £65,000 Basic + Door-to-Door Travel + Overtime + £200/Week Call-Out Allowance Hours: Monday-Friday, 08:30 - 17:30 Call-Out: 1 in 4 rota The Company Our client is a specialist refrigeration contractor providing service, maintenance and project support across industrial refrigeration environments throughout the West Midlands and East London/M25 corridor. Engineers work within a dedicated regional patch with occasional overnight stays where required. The Role An opportunity has arisen for an experienced Industrial Refrigeration Engineer to join a growing specialist team. The successful candidate will carry out service, maintenance, fault-finding, repair and optimisation of industrial refrigeration systems, with a strong focus on Ammonia (NH₃) and CO₂ plant. Covering a regional patch, you will be responsible for ensuring refrigeration equipment operates safely, efficiently and in compliance with industry standards whilst delivering excellent customer service. Key Responsibilities Service, maintain and repair industrial refrigeration systems, including Ammonia and CO₂ equipment. Carry out planned preventative maintenance (PPM) and reactive breakdown repairs. Diagnose refrigeration, electrical and control system faults. Participate in a 1-in-4 call-out rota and attend emergency breakdowns. Complete inspections, performance checks and major maintenance works. Undertake compressor overhauls when required. Produce service reports and maintenance documentation. Ensure compliance with all health, safety and environmental regulations. Build and maintain strong client relationships. Support junior engineers and apprentices where necessary.Requirements City & Guilds Level 2 (or equivalent) in Refrigeration, Air Conditioning or Mechanical Engineering. Proven experience on industrial refrigeration systems, particularly Ammonia and/or CO₂ plant. F-Gas Certification. Strong fault-finding and diagnostic skills. Ammonia handling training or equivalent industrial refrigeration experience. Full UK Driving Licence. Ability to manage a regional service patch independently.Desirable Experience within food manufacturing, cold storage, distribution or industrial processing environments. Knowledge of PLC controls, automation systems and energy efficiency initiatives. Additional qualifications such as IPAF, CSCS, Electrical Testing & Safety, Safe Handling of Ammonia or Asbestos Awareness.Package & Benefits £45,000 - £65,000 basic salary. £200 per week call-out allowance. Door-to-door travel pay. Overtime opportunities. Company van, tools, phone and tablet. Private Healthcare. Death in Service Life Insurance. Employee Assistance Programme. Ongoing training and development. Long-term career progression within a specialist industrial refrigeration business.Coverage: West Midlands and East London/M25 Corridor (Dartford), with engineers typically operating within a dedicated regional patch and occasional overnight stays when required