High Voltage Commissioning Engineer

We're a small but fast-growing company based in South Wales, working on exciting high voltage infrastructure projects across the UK. As part of our continued growth, we're looking for a High Voltage Commissioning Engineer to join our close-knit, supportive team.

About the role

You will play a critical role in the testing and commissioning of electrical systems from 11kV up to 132kV, working across a range of grid connections, substations, renewable energy projects and industrial installations.

Responsibilities include:

• Preparation and execution of commissioning plans and procedures
• Functional testing of HV equipment including transformers, switchgear, protection relays and SCADA systems
• Fault finding and diagnostics
• Site documentation and reporting
• Liaising with clients, DNOs, ICPs and project managers

Essential qualifications and certifications

• HNC/HND or degree in Electrical Engineering or a related discipline
• Senior Authorised Person (SAP), or demonstrable experience working under an SAP on HV networks
• G99/G59 testing and commissioning knowledge
• National Grid Person/BESC certification, or a willingness to obtain it
• ECS/CSCS card
• 18th Edition IET Wiring Regulations (BS 7671) — desirable
• First Aid at Work and Manual Handling, current or valid

Required experience and expertise

• Minimum 3 years' hands-on experience in high voltage commissioning (11kV–132kV)
• Experience working on DNO, ICP, IDNO or private HV networks
• Familiarity with protection relay configuration and secondary injection testing (e.g. Omicron, Megger)
• Sound knowledge of commissioning procedures, electrical safety regulations and risk assessment
• Ability to interpret technical drawings and schematics
• Strong documentation, reporting and communication skills
• Comfortable working independently and as part of a team, with a solution-driven approach

What we offer

• Competitive salary based on experience
• Company vehicle and fuel card
• Private healthcare insurance
• Opportunities for career progression as the company grows
• A company culture that genuinely looks after its people

Join us and play a key role in building the future of high voltage power systems, while working in an environment where your contribution is truly valued.