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
- 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
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
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
Why Apply?
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. Beyond package, they do a lot socially and it's a tight knit team. Culture is mission driven / hard working. Anyone working here will be at the forefront of the energy transition and making an impact.
If this peaks your interest, reach out today to have a confidential discussion and find out more about this opportunity!
Submit your CV or contact Holly Higginson (h.higginson@mintselection.com) to see if this could be the next step in your career.
Mint Selection are deeply committed to fostering a diverse, equitable, and inclusive workplace. We believe that the renewable energy sector thrives on innovation and creativity, which is driven by diverse perspectives and experiences. Our mission is to ensure that every individual, regardless of background, identity, or circumstance, has equal opportunity to contribute and grow within our organisation.
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