Primary Design Engineer – High Voltage Renewables
Location: Hybrid / Olney, Milton Keynes
Contract Type: Permanent | Full-time
Salary: Competitive remuneration + benefits
We are seeking an experienced Primary Design Engineer to join our High-Voltage Renewables Engineering Team here at Mitie Projects. This critical role ensures the safe, reliable, and efficient operation of electrical networks through high-quality substation layouts and earthing design.
Key Responsibilities
* Primary Design Engineering for HV/EHV AC substations (11kV–132kV), including AIS and GIS.
* Produce electrical layouts for substations, cable routes, LV systems, switchrooms, and control rooms.
* Design and analysis of earthing systems for substations, renewable energy sites (solar, wind, battery), and grid connections – with support from the earthing engineer.
* Perform soil resistivity testing, EPR studies, touch/step voltage assessments, and lightning risk assessments.
* Develop technical specifications for major electrical plant and ensure compliance with British and International Standards.
* Interface with multidisciplinary teams (structural, planning, CAD) and manage external design suppliers.
* Ensure compliance with CDM Regulations 2015, embed safety and sustainability by design.
* Mentor junior engineers and contribute to team development.
Essential Requirements
* Degree/HND/HNC in Electrical Engineering (Power Systems preferred).
* Proven experience in primary electrical design for HV/EHV substations and BoP projects.
* Strong knowledge of industry standards: BS7671, ENATS, NGTS, BS EN 61936-1, BS7354, etc.
* Familiarity with G81 standards and DNO-approved equipment registers.
* Ability to manage complex design interfaces and produce accurate technical documentation.
* Proficiency in busbar calculations, earthing layouts, and risk assessments.
* Working knowledge of CDM Regulations and designer responsibilities.
* Desirable: Experience with 3D CAD tools (e.g., Revit) and earthing modelling software (CDEGS).
Why Join Us?
* Work on cutting-edge renewable energy projects.
* Collaborate with a highly skilled engineering team.
* Opportunity to lead technical design and mentor future talent.
Interested? Apply now to be part of a team driving innovation in high-voltage renewable energy solutions.