​Role: BESS O&M Service Engineer

Location: South UK (covering Oxfordshire and Southampton sites)

Type: Permanent

Reporting to: Technical Director (UK)

About the Role - Battery Energy storage system operations and maintenance

The successful candidate will be responsible for the operation and maintenance of utility-scale Battery Energy Storage Systems, ensuring safe, reliable and efficient performance. The role combines field-based activities with home-office working and involves troubleshooting, inspections, performance optimisation, maintenance planning and emergency response support.

This is an excellent opportunity to join a business experiencing significant growth within the energy transition sector and to contribute to the long-term success of major BESS projects.

Key Responsibilities

• Conduct preventive and corrective maintenance on BESS assets and associated infrastructure.

• Perform remote and on-site diagnostics, inspections and troubleshooting activities.

• Support commissioning activities, system upgrades and major repairs.

• Ensure compliance with Health & Safety regulations and site procedures.

• Supervise subcontractors and monitor quality of third-party works.

• Review maintenance documentation, reports, RAMS and operational procedures.

• Support annual maintenance planning and coordination with OEM suppliers.

• Participate in on-call support for urgent site issues outside normal working hours.
  

Candidate Requirements

• Electrical engineering qualification is essential.

• Experience within renewable energy, power generation, utilities or related sectors.

• Strong understanding of LV systems, inverters, energy management systems and battery technology.

• ECS/CSCS card, or eligibility to obtain one.

• Knowledge of UK HSE regulations and safe working practices.

• Full UK driving licence and willingness to travel between sites.

• Experience within BESS or energy storage projects would be highly advantageous.

• HV operational experience is desirable.
  

Additional Information

• The role is predominantly site-based, with home-office working when not on site.

• Coverage is required across two locations: Oxfordshire and Southampton. Candidates based in London or near either site would be particularly well positioned.

• Sites operate 24/7, and occasional weekend work may be required to address urgent operational issues.

• The projects are expected to run for approximately 8-12 years, providing excellent long-term career stability.
  

Benefits

• Competitive salary and bonus scheme.

• 25 days annual leave plus bank holidays.

• Flexible working arrangements.

• Private medical insurance.

• Pension scheme with matched contributions.

• Car allowance and company vehicle for business travel.

• Ongoing training and development opportunities.

• Enhanced parental leave provisions.