Field Service Engineer - BESS Specialist Salary: £50,000 - £60,000 VanIndustry-OvertimeLeading TrainingCareer Progression Location: Home Counties - some national travel required Are you looking to join a global BESS Manufacturer offering excellent training, van, field work and the chance to work with the latest kit? Our client is a leading global manufacturer and trendsetter in the Battery Energy Storage System (BESS) market. They design and produce cutting-edge equipment essential for the world's most critical infrastructure. With a proven track record of innovation and a commitment to sustainable power, they are the trusted energy partner for major players across manufacturing, hyperscale data centers, and the renewables sector. We are recruiting for a Field Service Engineer to join our client's highly respected UK service team as a BESS specialist. This is a critical, customer-facing role offering significant autonomy, technical challenge, and a structured development programme in a high-growth industry. The successful candidate will be the technical expert responsible for the full lifecycle support of our client's high-voltage battery storage products at customer sites across the UK, working from a base location in the Home Counties. Key Responsibilities will include: Service & Repair: Performing complex fault diagnosis, scheduled preventative maintenance, and corrective repairs on BESS units, Power Conversion Systems (PCS), and associated high-voltage equipment. Commissioning: Leading the installation, testing, and successful commissioning of new BESS equipment on large-scale industrial and utility projects. Technical Support: Providing professional, on-site technical guidance and handover training to client facility management teams. Quality Assurance: Maintaining meticulous service records and ensuring all work meets the client's global quality and safety standards. If you want a role specialising in BESS for a global trendsetter then this is an outstanding opportunity. The Role: *Field Service Engineer - BESS *Installation and Service of BESS equipment *Monday to Friday, but Saturdays on a rota Candidate Requirements: *BESS experience preferred *Field Service Experience a must *Driving License Consultant: Sebastian Petitti Elix Sourcing Solutions is a specialist recruiter for Engineering, Manufacturing, Tech, Energy and Science roles ranging from mid to senior level positions. Please be aware that we will only accept applications from candidates that have a valid work permit to work in the UK. By applying to this job you are confirming that you do not hold a criminal record and that you know of no legal reason why you would be ineligible for employment. BESS, Battery Storage, Field Engineer, Service Engineer, UPS, High Voltage, Power Electronics, Commissioning, Renewable Energy, Data Centre, Industrial, field service engineer, Electrical, Berkshire, Hampshire, Hertfordshire, Buckinghamshire, Cambridgeshire, South East, NVQ