BESS Field Service Engineer – Energy Storage (O&M)
Location: Manchester, Sheffield, or Birmingham
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.
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
- Operate in line with UK safety standards and site procedures
- 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
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
Desirable:
- Experience working on BESS or power electronics (inverters, converters, transformers)
- HV/LV authorisation or experience working on high-voltage systems
- Understanding of networking (IP, VLANs, Modbus/TCP)
- 18th Edition / BS7671, Test & Inspect (2391) or similar
- HVAC / F-Gas knowledge
To apply for this role, click ‘apply now’ or contact Scott Thomson at s.thomson@mintselection.com for more information.
Equal Opportunities Statement
Mint Selection is committed to inclusive hiring and equal opportunities. We welcome applications from all backgrounds and are focused on building diverse teams that reflect the global energy transition.
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