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 and 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, CODNCO1, and commercial modules such as CIGA1, ICPN1, TPCP1. Ideally proven experience working on commercial ..... full job details .....