BESS O&M Service Engineer

Location: London / Oxfordshire Sites / Hybrid
Contract: Permanent, Full-time

The Opportunity

ARM is recruiting for an experienced BESS O&M Service Engineer to support the operation, maintenance and performance optimisation of utility-scale Battery Energy Storage Systems across the UK.

This is an exciting opportunity to join a growing business within the energy transition sector, ensuring BESS assets operate safely, reliably and efficiently in line with contractual requirements.

The role combines field-based site work, troubleshooting, remote operations and home working, alongside technical documentation, maintenance planning and corrective maintenance support.

Key Responsibilities

• Carry out preventive and corrective maintenance on BESS systems and associated infrastructure.
• Perform remote operations, diagnostics and troubleshooting.
• Conduct site inspections using appropriate tools and test equipment.
• Support safe operation of battery storage systems, PCS/inverters and EMS.
• Ensure compliance with site-specific Health & Safety requirements.
• Supervise subcontractors and ensure third-party works meet quality and compliance standards.
• Support commissioning, upgrades and major repairs.
• Review maintenance documentation, manuals and technical drawings.
• Support development of maintenance procedures, RAMS and Method Statements.
• Work with LTSA management and H&S teams on relevant procedures and documentation.
• Liaise with OEM suppliers regarding maintenance procedures and technical queries.
• Support preparation of annual maintenance plans for BESS projects.
• Provide on-call support for urgent site issues outside normal working hours.

About You

The successful candidate will have:

• A minimum of 2 years' experience in BESS, Energy Storage, Renewables, Solaror the Power sector.
• A degree or equivalent qualification in an engineering discipline.
• Strong knowledge of LV systems, batteries, PCS/inverters and Energy Management Systems.
• Practical experience in BESS Operations & Maintenance.
• ECS/CSCS card or eligibility to obtain one.
• Good knowledge of UK HSE regulations and safe working practices.
• Strong organisational, communication and problem-solving skills.
• A full UK driving licence and willingness to travel to UK sites.
• A proactive and solution-focused approach.
• Flexibility to participate in out-of-hours/on-call coverage.

Experience with HV operations, battery system training or specific PCS/OEM training would be highly advantageous.

If you're an experienced BESS O&M Engineer looking to play a key role in the reliable operation of utility-scale energy storage projects, apply today to discuss the opportunity with ARM.

To apply please contact Simon Cheung by sending your cv

Disclaimer:

This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission.