? Mobile Commercial Gas Engineer My client, a leading M&E building services provider, are seeking a highly skilled, experienced, and self-motivated Mobile Commercial Gas Engineer to join their growing team. This pivotal role involves providing expert planned preventative maintenance (PPM), reactive breakdown support, diagnostics, repair, and installation services for a wide range of commercial and industrial boiler systems across our client sites in London and the South East. The Mobile Commercial Gas Engineer will be instrumental in ensuring the safety, efficiency, and reliability of their clients' heating systems. Key Responsibilities: Perform planned preventative maintenance (PPM) on commercial and industrial boiler plant and associated heating systems. Respond promptly to reactive breakdown calls, diagnose faults accurately, and execute effective repairs to minimise downtime. Conduct meticulous fault-finding on electrical, mechanical, and gas/oil components of boiler systems. Carry out boiler installations, commissioning, and de-commissioning as required. Perform comprehensive combustion analysis and ensure optimal boiler efficiency and compliance. Execute gas safety inspections and maintain all necessary certifications and records. Identify and rectify defects on pumps, valves, plate heat exchangers, flue systems, and con...