Join Mitie – the future of high‑performing places
ROLE: Senior Primary Electrical & Plant Engineer
HOURS: Full‑time
LOCATION: Hybrid (various UK locations)
At Mitie, our people are our greatest strength, and our promise is to create a place to work where you can thrive and be your best every day. We're looking for a highly experienced Senior Primary Electrical & Plant Engineer to join our specialist high‑voltage renewables engineering team. In this role, you will deliver safe, reliable and efficient designs for substations and earthing systems across a range of renewable energy and utility projects.
Role Responsibilities
Substation & Electrical Design
* Produce detailed electrical layouts for substations up to 132kV AIS/GIS, including cable routes, LV layouts, switch rooms and control rooms.
* Create plan/elevation drawings, busbar calculations, structural outlines, clamp schedules and material specifications.
* Develop Balance‑of‑Plant / EPC site layouts for renewable technologies including battery, wind and solar projects.
Earthing System Design
* Manage earthing system design deliverables, including complete drawing suites and technical documentation.
* Perform soil resistivity testing, EPR studies, touch/step voltage assessments and fall‑of‑potential testing.
* Model earthing systems using tools such as CDEGS and specify earthing materials.
* Conduct lightning protection and EMC assessments in line with standards such as BS 62305‑2.
Compliance & Technical Leadership
* Ensure full compliance with British and International Standards (e.g., BS7671, ENATS, NGTS)
* Review tender documents, define electrical scope and prepare design deliverables
* Coordinate multi‑disciplinary design inputs (structural, planning, CAD) to deliver integrated solutions.
* Provide technical mentoring, guidance and supervision to junior engineers.
Project Delivery
* Resolve design challenges, maintain document control and support procurement activities.
* Ensure quality, budget and programme adherence across all design stages.
* Apply safety‑by‑design principles and comply fully with CDM Regulations 2015.
* Required Qualifications
* Degree, HNC or HND in Electrical Engineering (Power Systems preferred).
* Strong background in HV/EHV primary electrical design (11kV–132kV).
* Experience within consultancy, contracting or utility environments.
* Excellent knowledge of UK and international substation standards and installation specifications.
* Ability to produce, review and interpret detailed technical documents and drawings.
* Proactive, organised and capable of managing complex design workflows.
* Familiarity with 3D CAD tools such as Revit (desirable).
* Strong understanding of cable installation practices, G81 standards and risk management.
Personal Attributes
* Proven ability to take initiative and adopt a proactive, solution‑focused approach.
* Confident in managing inter‑departmental design interfaces such as structural, planning and CAD teams.
* Strong communication skills with the ability to mentor and develop junior engineers.
* Excellent understanding of risks associated with cabling works and HV/EHV design.