Job Description

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