Piper Maddox are working with a fast-growing renewable energy IPP specialising in grid-scale battery storage projects across the UK and internationally. Their mission is to enable a smarter, cleaner energy future through innovative technology, expert asset management, and high-performing energy storage solutions. They boast an operational portfolio of over 500MW across the UK and plan to expand into Europe.

As a Battery Energy Storage System Engineer, you’ll play a key role in delivering technical excellence across a growing portfolio of operational and new-build BESS assets. You’ll ensure the optimal performance, reliability, and safety of grid-scale battery systems while supporting project, commercial, and O&M teams.

Key Responsibilities:

· Act as the technical authority for BESS assets, Power Plant Controllers (PPC) and SCADA systems

· Provide day-to-day technical support for operational BESS assets across the portfolio

· Troubleshoot issues with suppliers and O&M partners, driving quick and effective resolutions

· Monitor asset performance and analyse system data to identify trends and improvements

· Conduct fault diagnosis and root cause analysis for asset and grid events

· Assist with supplier engagement, technical specifications, and design reviews

· Support project teams during BESS and SCADA commissioning activities

· Ensure compliance with grid, G99, and safety standards across all projects

Skills:

· Degree-qualified in Electrical Engineering or a related field (Master’s desirable)

· Strong technical background in grid-scale BESS, renewable energy, or HV systems

· Experience with electrical design, installation, or commissioning of energy storage or renewable projects.