Principal HV Design Engineer

Overview

In this role you lead high‑voltage design for UK substations and cabling within a global engineering team. You’ll shape transmission projects for diverse clients, ensuring design quality and compliance with UK/Irish standards while mentoring junior engineers. You’ll coordinate multi‑disciplinary work and build strong client relationships, contributing to a sustainable energy future. This position combines hands‑on HV design with leadership across project teams, offering opportunities to influence major infrastructure and offshore projects.

Pay / Benefits

• 28 days’ holiday plus bank and public holidays
• Private health care
• Flexible and hybrid working conditions
• Formalised development plans and yearly promotion opportunities
• Pension scheme
• Life assurance

Responsibilities

• Contribute to design of projects for a wide range of clients
• Plan design work and deliverables with the project team (civil and MEP)
• Develop and technically assure designs using relevant software
• Ensure compliance with UK/Irish DNO and National Grid standards
• Coordinate multi‑disciplinary aspects of projects
• Mentor junior team members in design
• Foster relationships with clients and stakeholders

Key requirements

• Relevant degree in electrical engineering, power systems engineering or similar
• Chartered Engineer status or equivalent
• Experience with UK & Irish DNO standards; National Grid experience and Senior Authorised Person would be beneficial
• Hands‑on experience in designing HV systems 33–132 kV (GIS, AIS, transformers up to 500 MVA, P&C, Aux. systems, CT/VT sizing, earthing, bonding and lightning protection)
• HV installations above 132 kV including offshore substations would be an advantage
• Experience coordinating designs with other disciplines and acting as discipline lead
• Experience applying CDM2015 regulations to design tasks

• Collaborative mindset
• Relationship building with clients and stakeholders
• Respectful communication and delivering on promises
• HV design for 33–132 kV systems (GIS/AIS)
• Protection & Control systems
• Transformer sizing up to 500 MVA

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