Technical Principal – Electrical / HV Substation Design

Locations: Glasgow, Brighton, Newcastle, York, Croydon or Bristol
Type: Permanent
Sector: Energy / Power
Discipline: Electrical Engineering

We are recruiting for an experienced Technical Principal / Principal Electrical Engineer to join a leading consultancy working across the UK energy and power sector.

This is a senior technical role within a Transmission & Distribution environment, supporting projects from early-stage optioneering and concept design through detailed design, commissioning and completion.

The role is suited to an experienced electrical engineer with strong 11kV-33kV network, HV/LV, substation and renewable generation connection experience, combined with project leadership, client management and mentoring capability.

Key Responsibilities

Front-End & Optioneering

• Capture and agree stakeholder requirements.

• Assess network configuration, resilience and operational scenarios.

• Lead and support site surveys.

• Develop technical options and recommendations.

• Produce reports to support client decision-making.

Electrical & Substation Design

• Deliver electrical designs for 11kV-33kV networks.

• Cable sizing, routing and termination.

• Develop HV substation layouts and equipment specifications.

• Design control and protection schemes, including G99.

• Multicore and fibre-optic cable design.

• Earthing system design.

• Substation LVAC and DC system design.

• Interpret client and DNO standards.

• Produce high-quality technical drawings, calculations and design deliverables.

Project & Technical Leadership

• Lead electrical engineering packages and projects.

• Coordinate multidisciplinary design interfaces.

• Manage technical deliverables against programme and quality requirements.

• Conduct design reviews and provide technical assurance.

• Act as a key client interface.

• Lead technical meetings and workshops.

• Resolve complex engineering and design issues.

• Provide technical guidance to junior engineers.

Commissioning & Construction Support

• Respond to construction and commissioning queries.

• Attend site meetings and design reviews.

• Provide technical support during construction.

• Resolve site-based technical issues.

• Support commissioning and project close-out.

Bids & Business Development

• Provide technical input into bids and tenders.

• Support methodologies, programmes and resource proposals.

• Prepare technical capability statements.

• Support client development and new opportunities.

Candidate Requirements

Essential

• Degree qualified in Electrical Engineering.

• Chartered Engineer status or equivalent.

• Extensive electrical project engineering experience.

• Strong 11kV-33kV network design experience.

• Strong HV substation and HV/LV design knowledge.

• Experience with control and protection systems, including G99.

• Experience producing specifications, calculations, drawings and design deliverables.

• Ability to lead projects from early design through commissioning.

• Strong multidisciplinary coordination and stakeholder-management skills.

• Knowledge of DNO/TSO standards and regulations.

• Experience mentoring or developing engineers.

• Strong Microsoft Office skills.

Desirable

• Renewable generation and grid connection experience.

• Net-zero energy project experience.

• Experience with data centres, aviation, healthcare, nuclear or defence.

• Commissioning and site-support experience.

• Bid preparation and proposal-writing experience.

• Willingness to travel within the UK and internationally.

The Opportunity

This is a senior opportunity for an engineer who can combine technical design expertise with project leadership and client management.

If you are a Technical Principal, Principal Electrical Engineer, Senior Electrical Design Engineer or HV Substation Design Engineer with strong 11kV-33kV experience, please get in touch for a confidential discussion.

📩 Apply now or contact me for further details.

We are an equal opportunity employer and value diversity in our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.