Operations & Maintenance (O&M) Manager – Battery Energy Storage Position Summary: We are seeking a skilled and proactive Operations & Maintenance (O&M) Manager to oversee the operational performance, maintenance, and reliability of our Battery Energy Storage System (BESS) assets. The ideal candidate will lead the day-to-day technical and managerial activities required to ensure optimal performance, regulatory compliance, and safety of the BESS project(s). This role is critical in supporting long-term asset performance and lifecycle optimization. Key Responsibilities: * Oversee all aspects of operations and maintenance for the assigned battery energy storage site(s), including routine and preventative maintenance activities. * Ensure safe, efficient, and reliable operation of BESS assets in accordance with manufacturer guidelines, industry standards, and contractual obligations. * Develop and implement O&M strategies, policies, and procedures to maximize availability, performance, and lifecycle of the energy storage system. * Monitor system performance through SCADA and other data analytics platforms; identify and respond to performance deviations or alarms. * Manage and coordinate onsite personnel, contractors, and vendors to execute maintenance schedules and corrective actions. * Ensure compliance with environmental, health & safety (EHS) regulations, grid codes, and local authority requirements. * Create the company structure of regulatory, operational, and procedural documentation needed for an operational 300MVA BESS site. * Lead the internal or external resource to create the required documentation to complete this structure. * Create the management strategy for the provision of the on-site operational and maintenance function, when operational. * Collate maintenance regime details from key suppliers and create cyclic maintenance programme. * Where required create maintenance procedures on non-supported plant and equipment. * Create the tender and manage the outsourcing of the control room function. * Manage the contracted Maintenance contracts, when operational. * Manage spare parts inventory, maintenance tools, and documentation systems. * Track and report key performance indicators (KPIs) including availability, capacity factor, response time, and warranty compliance. * Support root cause analysis (RCA) of equipment failures and performance issues; implement corrective and preventative actions. * Maintain detailed and accurate maintenance logs, inspection reports, and compliance records. * Collaborate with engineering and asset management teams to support performance optimization and future project upgrades * * Education & Experience: * Bachelor's degree in Electrical Engineering, Mechanical Engineering, Energy Systems, or a related technical field. * Minimum 5 years of experience in O&M, preferably in renewable energy, power systems, or energy storage systems. * Experienced In Operations and Maintenance, with significant time in both discipline * SAP qualified, lapsed or current, with experience with managing the interface with National Grid. * Understanding of NESO and power scheduling * HND minimum qualified * Proactive, self-motivated leader