A leading Construction and Facilities Management contractor is seeking an experienced and fully qualified Mobile Commercial Gas Engineer to join their team on a full-time permanent basis. This is a mobile role working across a range of commercial sites, between Essex and the surrounding area. Delivering high-quality servicing, repairs, and installations of gas systems as part of planned and reactive maintenance works. Role and Responsibilities * Service, repair, and install commercial gas appliances and heating systems across various commercial premises (e.g., offices, banks, retail, schools, healthcare facilities, public buildings). * Carry out planned preventative maintenance (PPM) and compliance checks. * Diagnose faults and perform reactive repairs efficiently and to a high standard. * Complete and maintain accurate job records using electronic systems. * Ensure all work complies with current Gas Safety regulations and company health & safety standards. * Conduct gas safety inspections and commissioning of new installations. * Liaise with clients and site representatives to provide excellent customer service. * Maintain company vehicle, tools, and stock in good working condition. * Participate in the emergency on-call rota. * Working Hours: Monday to Friday (plus out-of-hours call-out on a rota basis) Requirements * Valid ACS commercial gas qualifications, including CCN1, COCN1, COD...