Engineer - Field Service Engineer

BESS Field Service Engineer - Energy Storage (O&M) We’re looking for BESS Field Service Engineers to join one of the UK’s leading BESS O&M providers. This is a field-based role supporting a growing portfolio of BESS assets across the UK, reporting into the O&M Manager. With over 17 projects in the pipeline, this is a long-term, secure platform within a high-growth environment. As a Field Service Engineer, you’ll be responsible for maintaining and optimising BESS assets, ensuring high availability and performance. You’ll carry out planned and reactive maintenance, support commissioning activities and act as a key technical resource across operational sites. BESS Field Service Engineer - Key Responsibilities Deliver planned preventative and reactive maintenance on BESS assets Diagnose and resolve electrical and system faults across HV/LV equipment Carry out inspections, testing and annual capacity checks Monitor system performance and analyse operational data Support firmware and software upgrades across systems Identify and implement reliability and performance improvements Provide remote diagnostics and phone support where required Support commissioning and handover of new BESS sites Work closely with internal engineering teams to resolve complex issues Conduct risk assessments and ensure safe systems of work Maintain accurate service records, reports and documentation Manage spare parts and inventory at site level Feed back field issues to support system and process improvements BESS Field Service Engineer - Requirements Qualification in Electrical or Electro-mechanical Engineering Experience in maintenance within power generation, renewables or industrial environments Strong fault-finding capability across electrical systems Basic IT skills (Excel, Outlook, diagnostics tools, networking fundamentals) Willingness to travel across UK sites, with occasional overnight stays Experience working on BESS or power electronics (inverters, converters, transformers) ~ Understanding of networking (IP, VLANs, Modbus/TCP) ~HVAC / F-Gas knowledge They can offer you a permanent, secure future with a company due to deliver 15+ projects over the next 5-10 years. They have offices throughout the UK, with great benefits including annual bonus up, private healthcare, life assurance and a competitive base salary dependent on experience. Anyone working here will be at the forefront of the energy transition and making an impact.