Mechanical Maintenance Engineer / Technician, Rotating Equipment (Compressors, Chillers and Piping)

About the role We are looking for an experienced mechanical maintenance engineer or technician to join our technical operations team at a hydrogen production site. You will carry out and troubleshoot mechanical maintenance on compressors, chillers, other rotating equipment and piping, keeping plant safe and reliable. Hydrogen experience is preferred. Department Technical Operations Reports to Lead Maintenance Technician Location Site-based Employment type Full time, permanent Working pattern Shift and on-call arrangements to be discussed at interview Key responsibilities • Carry out preventive, corrective and overhaul maintenance on compressors, chillers and other rotating equipment, including alignment, bearings, seals, valves, couplings and lubrication systems. • Diagnose mechanical faults such as loss of capacity or pressure, vibration, overheating, leakage and abnormal wear, and find and record the root cause. • Inspect, repair and modify process and utility piping, supports, flanged joints and valves, including pressure and leak testing. • Apply safe isolation, depressurization, purging and permit-to-work procedures on gas-service equipment. • Support start-up, shutdown and post-maintenance restart alongside operations, electrical and instrumentation colleagues. • Use condition-monitoring data such as vibration, temperature, pressure and oil analysis to plan work before failure. • Keep accurate maintenance records, overhaul history and updated procedures. • Manage spares and special tools for assigned equipment. • Work with OEMs and service providers and supervise their work on site. • Share knowledge with colleagues so that no critical task depends on one person. • Support the site's diaphragm and piston compressors to the level of authorization given after assessment. RequirementsEssential • Degree or diploma in mechanical engineering, or an equivalent mechanical background with proven industrial experience. • Hands-on maintenance experience in the industrial maintenance sector on rotating equipment, including compressors and chillers. • Proven troubleshooting of compressors, piping and other rotating equipment. • Practical skills in alignment, bearing and seal replacement, valve and coupling work and mechanical overhaul. • Working knowledge of piping systems, including flanges, supports, valves, and pressure and leak testing. • Understanding of safe isolation, permit-to-work and risk assessment on pressurized or gas-service equipment. • Ability to read mechanical drawings, P&IDs and manufacturer manuals. • Clear record keeping and report writing in English. • Right to work, or the ability to obtain permission to work, at the site location. Preferred • Hydrogen or other flammable-gas service experience. • Experience on diaphragm and piston (reciprocating) compressors, including PDC compressors. • Manufacturer training or certification on compressors or chillers. • Condition-monitoring knowledge, such as vibration analysis, oil analysis and thermography. • Root-cause analysis and reliability experience. • Hydraulic system experience. • Experience mentoring or training other technicians. • Recognized safety qualifications relevant to site work. What we offer A competitive package, details of which will be shared with shortlisted candidates, and the chance to work on hydrogen compressor and electrolyser equipment in a small, hands-on technical team with manufacturer training and development. How to apply Send your CV and a short summary of the compressors, chillers and piping systems you have maintained, and what you personally did on them. Only shortlisted candidates will be contacted. We are an equal opportunity employer.

Essential: • Degree or diploma in mechanical engineering, or an equivalent mechanical background with proven industrial experience. • Hands-on maintenance experience in the industrial maintenance sector on rotating equipment, including compressors and chillers. • Proven troubleshooting of compressors, piping and other rotating equipment. • Practical skills in alignment, bearing and seal replacement, valve and coupling work and mechanical overhaul. • Working knowledge of piping systems, including flanges, supports, valves, and pressure and leak testing. • Understanding of safe isolation, permit-to-work and risk assessment on pressurized or gas-service equipment. • Ability to read mechanical drawings, P&IDs and manufacturer manuals. • Clear record keeping and report writing in English. • Right to work, or the ability to obtain permission to work, at the site location.

Key responsibilities: • Carry out preventive, corrective and overhaul maintenance on compressors, chillers and other rotating equipment, including alignment, bearings, seals, valves, couplings and lubrication systems. • Diagnose mechanical faults such as loss of capacity or pressure, vibration, overheating, leakage and abnormal wear, and find and record the root cause. • Inspect, repair and modify process and utility piping, supports, flanged joints and valves, including pressure and leak testing. • Apply safe isolation, depressurization, purging and permit-to-work procedures on gas-service equipment. • Support start-up, shutdown and post-maintenance restart alongside operations, electrical and instrumentation colleagues. • Use condition-monitoring data such as vibration, temperature, pressure and oil analysis to plan work before failure. • Keep accurate maintenance records, overhaul history and updated procedures. • Manage spares and special tools for assigned equipment. • Work with OEMs and service providers and supervise their work on site. • Share knowledge with colleagues so that no critical task depends on one person. • Support the site's diaphragm and piston compressors to the level of authorization given after assessment.