Senior Design Engineer (33kV)

You will lead on the design of high voltage (HV) infrastructure at 33kV, ensuring designs meet technical, regulatory, and client standards for renewables projects and associated network connections.

You will take ownership of designs from feasibility and tender stage through detailed design and construction, providing technical guidance and ensuring solutions meet client, DNO/IDNO, regulatory and delivery requirements.

You will have a strong background in electrical engineering principles, with experience in creating designs for new electrical infrastructure projects.

Role Responsibilities

• Take technical ownership of HV electrical designs at 11kV/33kV from concept and feasibility through to construction.
• Lead the design of substations, including layouts, protection & control, earthing, auxiliary systems and associated cable infrastructure.
• Review and check engineering drawings, calculations, specifications and technical documentation.
• Develop and produce detailed engineering drawings (single line diagrams, GA layouts, schematics, wiring diagrams) in AutoCAD.
• Coordinate with structural and civil designers to integrate substation infrastructure and cable routes.
• Liaise with DNOs/IDNOs and ensure designs comply with ENA, BS, IEC, and relevant DNO design standards.
• Prepare detailed bills of quantities (BOQ) and cost estimates in collaboration with the estimating team.
• Develop construction design packs incorporating in-house and third-party input for delivery teams.
• Identify and eliminate risks across construction, operational, and decommissioning phases.
• Provide technical input during tender evaluations, client meetings, and design reviews.
• Ensure all designs meet health, safety, environmental, and quality standards.
• Maintain up-to-date knowledge of industry standards and best practice.

• Degree in Electrical Power Engineering (or HNC/HND with extensive HV design experience).
• Significant experience in HV electrical design at 11kV/33kV or above, with demonstrable experience taking technical ownership of substation and cable designs. (Minimum 5 years’ experience)
• Experience reviewing and checking HV designs, drawings, calculations and technical documentation produced by others.
• Proven experience in 33kV substation layout, protection & control, earthing design, and auxiliary systems.
• Proficient in AutoCAD for HV design drawings (SLDs, schematics, GA layouts, wiring diagrams).
• Strong understanding of HV plant equipment (transformers, switchgear, CTs/VTs, etc.).
• Experience liaising with DNOs/IDNOs for design submissions and approvals.
• Full UK Driving Licence

Desirable:

• Experience preparing and reviewing protection studies and earthing reports.
• Experience with SCADA projects, PV schedule design, or energy conversion systems.
• Chartered Engineer (CEng) status or working towards Chartership.
• Familiarity with relevant electrical design software.
• Previous experience within an ICP utility contractor or IDNO environment.