Role: Energy Storage Systems Engineer (BESS)
Location: UK (Hybrid Working)
Salary: Competitive

Role Overview

A global leader in green technology is seeking an experienced Energy Storage Systems Engineer to join its UK team.

Operating across wind, energy storage, and green hydrogen, the organisation develops cutting-edge solutions that accelerate the transition to clean energy.

Recognised internationally for innovation and sustainability, it has achieved carbon neutrality across operations and is targeting full value-chain neutrality by 2028.
This role will focus on the technical design, integration, and commissioning of large-scale Battery Energy Storage Systems (BESS), working closely with internal product teams, EPCs, and contractors to deliver projects that set new standards in safety, reliability, and performance.

Key Responsibilities
 

• Lead the integration of BESS DC systems, AC systems, and Energy Management Systems (EMS) at project sites.
• Manage technical design and project delivery of BESS assets from concept through commissioning and post-commissioning support.
• Develop and review integration test plans, ensuring compliance with UK grid codes, standards, and regulations.
• Oversee design and integration of control systems, coordinating with internal and external stakeholders.
• Prepare specifications, data sheets, bid evaluations, and ensure procurement alignment.
• Review safety-critical systems, including thermal management and fire suppression, ensuring compliance with UL9540A and UK HSE standards.
• Provide technical input into innovation initiatives and roadmap development for ESS products.
• Support HAZID, HAZOP, and design review workshops to identify and mitigate technical risks.
• Monitor operational performance of BESS assets, analysing system data, leading root cause investigations, and implementing corrective actions.

• Technical Expertise – In-depth knowledge of battery technologies (LFP/NMC), PCS functionality, protection, communication interfaces, and system-level design.
• Project Delivery – Proven experience leading utility-scale BESS projects, including FATs, SIT/SAT, and commissioning.
• Grid & Compliance Knowledge – Familiarity with ENA G99, UK grid compliance processes, and dynamic system behaviour (inertia, fault contributions, reactive power).
• Stakeholder Engagement – Strong coordination skills with EPCs, contractors, and internal teams, ensuring clear communication and aligned objectives.
• Problem-Solving Mindset – Proactive in identifying risks, managing technical issues, and driving innovation in ESS integration.

• Degree in Electrical Engineering, Power Systems, or related discipline.
• 6+ years of relevant industry experience.
• Strong understanding of standards (ISO, IEC) and safety codes.
• Experience in HV/MV grid integration and commissioning.
• Full right to work in the UK.

• Competitive salary with performance-related bonus.
• Career development and support for professional qualifications/chartership.
• Private medical cover and life assurance.
• Electric vehicle leasing scheme.
• Cycle to work scheme.
• Company-wide social events and long-service recognition.