Commercial Gas / Combustion Service Engineer The Role We are recruiting an experienced Commercial Gas / Combustion Service Engineer to support a prestigious contract. You will be responsible for covering multiple buildings through Oxford completing planned maintenance, reactive works, fault finding and compliance across critical heating, hot water and associated M&E systems. Key Responsibilities * Carry out PPM, reactive and breakdown works on commercial gas and combustion plant * Provide first-line response to critical heating and hot water systems, including gas pipework * Gas testing, purging and safe isolations in line with IGE Regulations and British Standards * Fault finding, repair and optimisation of gas appliances, pipework, valves, controls, pumps and associated plant * Completion of all statutory paperwork, Gas Safe records, logbooks and electronic documentation * Operate Permit to Work and Safe Systems of Work in line with BGIS and client requirements * Supervise subcontractors and ensure works are delivered safely and to specification * Monitor plant performance via BMS and proactively identify improvements and energy efficiencies * Ensure compliance with H&S legislation, KPIs and SLAs at all times Skills & Experience Required * Fully qualified Commercial Gas Engineer / Combustion Engineer * Current ACS Certification (minimum: Core Safety, Indirect Fired Appliances & Commercial Pipework) * City & Guilds or equivalent in Plumbing & Heating * Proven experience working on commercial gas and combustion plant * Strong fault-finding skills across gas appliances and associated HVAC systems * Ability to read and understand electrical schematics for fault diagnosis * Experience completing RAMS, permits, job cards and compliance documentation * Comfortable working independently in a technically demanding environment Desirable Knowledge * Experience working within critical environments (education, healthcare, commercial estates) * Working knowledge of HVAC, BMS, LV systems, generators and UPS * Understanding of financial control, quotations and materials management