Senior / Lead Electrical Design Engineer - HV/LV (BESS / Grid Connection)
📍 Location: Olney, MK46
💼 Type: Contract
💰 Salary: £220 - £300 - Open to discussion
About the Role
We are looking for a Senior / Lead Electrical Design Engineer to play a key role in delivering a major grid-scale energy infrastructure project, with a strong focus on Battery Energy Storage Systems (BESS) and transmission network integration.
In this role, you will lead the delivery of electrical design from concept through to construction and commissioning, covering both LV and HV systems (up to 33kV). You will also provide technical oversight on how BESS assets connect into the wider transmission network (up to 400kV).
This is a high-impact position offering ownership of design outputs, stakeholder engagement, and technical leadership across a complex, large-scale programme.
Key Responsibilities
Lead and deliver HV/LV electrical design activities across the full project lifecycle
Provide technical leadership and guidance to engineers and multidisciplinary teams
Oversee production and review of key designdeliverables, including:
Electrical layouts
Cable schedules
Lighting and HLV designs
Drive the integration of multiple systems, including:
Battery systems
Inverters
SCADA
Switchgear
Ensure all designs comply with UK standards, regulatory requirements, and design governance processes
Support and influence grid connection strategies for BESS assets
Interface with key stakeholders including clients, contractors, and network operators
Key Requirements
Strong experience in HV/LV electrical design, ideally up to 33kV
Proven background in BESS, renewable energy, or grid connection projects
Demonstrated experience leading design workstreams or mentoring engineers
Ability to review, approve, and take ownership of complex technical deliverables
Strong understanding of UK engineering standards and governance frameworks
Experience coordinating across multidisciplinary engineering teams
Desirable Experience
Direct experience interfacing with National Grid or transmission operators
Background in large-scale infrastructure or complex energy programmes
Experience in grid-scale BESS or high-value energy developments
Chartered status or working towards (e.g., CEng)
Why Apply?
Take a lead role on a flagship energy project at the forefront of the energy transition
Influence technical direction and design strategy on grid-scale BESS developments
Gain exposure to high-voltage transmission systems and complex network connections
Work across the full lifecycle, from early stage design through to delivery and commissioning
Be part of a growing sector with strong long-term investmentIf you're a senior or lead-level electrical engineer with strong HV experience and a background in energy infrastructure, this is a fantastic opportunity to step into a high-visibility, leadership role.
👉 Apply now or contact Ella on (phone number removed) for more information.
RG Setsquare is acting as an Employment Business in relation to this vacancy