Here's what you'll be doing
Salary: £68,827-£82,182 + Company Car / Allowance & Excellent Benefits
Location: Home Based with Nationwide Travel
We are recruiting for a Senior Electrical Design Engineer to join E.ON Infrastructure Services (EIS), this role has a primary focus on Battery Energy Storage Systems (BESS), while operating as part of a broader portfolio of integrated energy solutions for Industrial and Commercial customers. Working alongside technologies such as solar PV, CHP and advanced energy management solutions, the role is central to designing, validating and delivering BESS-led projects that maximise customer value and support their transition to Net Zero.
This is an exciting opportunity to work at the heart of E.ON’s collaborative, UK-wide energy projects, bringing together expertise from across infrastructure, energy supply, eMobility, trading and residential businesses. You’ll be part of a joined-up team that drives innovative, low-carbon solutions and positions E.ON as a trusted partner for customers on their decarbonisation journey.
Key responsibilities include:
- Leading the detailed design and engineering development of BESS projects, ensuring solutions are robust, compliant and aligned with commercial and grid requirements.
- Developing complete electrical system designs, including power conversion, protection coordination, interconnection schemes and control interfaces across LV and HV networks.
- Producing, reviewing and approving technical documentation such as single-line diagrams, schematics, wiring diagrams, layouts and equipment arrangements.
- Assessing and selecting appropriate energy storage solutions, considering system behaviour across different operating and load scenarios.
- Supporting grid compliance activities, including preparation of G99/G100 submissions and coordination with OEMs, DNOs/IDNOs, ICPs and other project stakeholders.
- Preparing technical specifications and procurement documentation, reviewing supplier proposals and supporting bid evaluations alongside Commercial and Supply Chain teams.
- Identifying and managing technical risks, including electrical safety, thermal performance, fire protection, failure modes and regulatory compliance.
- Working collaboratively with construction, commissioning and delivery teams, providing engineering assurance and supporting testing, handover and energisation.
What we need from you
- Strong grounding in power systems, BESS technology and distributed energy integration, ideally gained within renewable energy, industrial power, grid services, or utilities environments.
- Competent with electrical design tools – AutoCAD, Trimble ProDesign, MATLAB, PowerFactory, ETAP, or similar power systems modelling software.
- Evidence of delivering end-to-end engineering design packages for LV and HV systems, including cable sizing, fault level assessment, protection coordination, power quality, and interface design.
- Confident communicator able to liaise effectively with clients, manufacturers, network operators, project managers, and site teams, translating design intent into build-ready documentation.
- Experience of engineering governance and CDM, Building Regulations, Design Risk Assessments, HAZOP/HAZID, DSEAR or equivalent design assurance processes.
- Degree-qualified in Electrical Engineering or related discipline (BEng/BSc, MEng/MSc).
It would be great if you had
- Chartered Engineer status/ working towards (IET or equivalent).
Here’s what you need to know
- Award-Winning Workplace - We’re proud to be named a Sunday Times Best Place to Work 2025 and the Best Place to Work for 16–34-year-olds.
- Outstanding Benefits - Enjoy 26 days of annual leave plus bank holidays, a generous pension, life cover, bonus opportunities, and access to 20 flexible benefits with tax/NI savings.
- Flexible & Family-Friendly - Our industry-leading hybrid and family-friendly policies earned us double recognition at the Personnel Today Awards 2024. We’re open to discussing how flexibility can work for you.
- Inclusive & Diverse - We’re the only energy company in the Inclusive Top 50 UK Employers. We’re also proud winners of Best Employer for Women and Human Company of the Year—recognising our inclusive, people-first culture.
- Support at Every Stage of Life - We’re Fertility Friendly and Menopause Friendly accredited, with inclusive support for everyone.
- Accessible & Supportive - As a Disability Confident Employer, we guarantee interviews for disabled applicants who meet the minimum criteria and will make any adjustments needed during the process.
- Invested in Your Growth - From inclusive talent networks to top-tier development programmes, we’ll support your growth every step of the way.
E.ON is committed to being an inclusive employer. We recognise that everyone is different and we aim to provide a working environment where each person feels respected, valued and able to achieve their full potential. We are happy to consider flexible working arrangements. If you require any reasonable adjustments, please just let us know.