Commissioning Service Engineer - HV​/LV Switchgear

Commissioning Service Engineer - HV/LV Switchgear Location – Scotland

Power up your career with a hands‑on engineering role in critical infrastructure.

We’re looking for a Commissioning Service Engineer to join our team in Scotland, working on HV/LV switch gear, transformers, and electrical distribution systems across the UK and overseas. This role is ideal for someone who thrives in a field‑based, problem‑solving environment, enjoys variety in their work, and wants to develop expertise in installation, commissioning, maintenance, and fault diagnosis.

• Install, commission, and maintain switch gear, transformers, and related equipment (400V–33kV).
• Perform testing and diagnostics, including Partial Discharge, thermal imaging, and oil sampling.
• Lead on‑site activities, supervising teams and coordinating with project managers.
• Work flexibly, including travel across the UK and internationally, as part of a 24/7 on‑call rota.
• Produce reports and documentation to ensure high standards of work completion.
• Proactively identify and communicate on‑site opportunities for additional services, upgrades, or solutions that enhance customer operations and align with Schneider Electric offerings.

• Experience working with electrical distribution systems, switch gear, or transformers.
• Ability to troubleshoot and diagnose faults in electrical equipment.
• Knowledge of HV/LV systems and electrical safety regulations.
• Willingness to travel and work flexibly, including some overseas assignments.
• Strong communication skills and the ability to supervise teams on‑site.

• High Voltage Testing (415 v – 33 kv systems).
• CT Magnetisation Curves – complete using variac/volt & ammeter as well as CT analyser; also polarity check without CT analyser.
• CT Primary Injection – standard protection (OC/EF/Metering) configuration & high impedance scheme such as Bus Zone protection.
• Relay Secondary Injection (both electromechanical and solid‑state relays) – include current & voltage protection.
• VT Primary Injection.
• Control Circuit Wiring testing & modification – prove each panel to the associated schematic diagram & fault find; must be able to read schematic diagrams.
• Mechanical/Electrical function testing of 415 v – 33 kv switchboards & networks.
• G59 G99 protection – Under/Over Voltage, Under/Over Frequency, ROCOF/dF/dT.
• Basic secondary Injection sets such as Sverker 760/780, T&R 100/200
  
  ADM, T&R DVS
  3.
• Knowledge of B.E.B.S. S12 (1964) wire identification standard as used in all UK HV switch gear.
• Knowledge of basic transformer protection devices & associated test methods.
• Operational knowledge of basic auto‑changeover schemes.

• Work with industry‑leading technology in critical power infrastructure.
• Ongoing training and development to enhance your skills and progress your career.
• A supportive team environment with opportunities to grow within a global company.
• Varied and exciting work—no two days are the same.

Competitive salary & Bonus Scheme, 28 Days Annual Leave + Public Holidays, Holiday Buy & Sell programme, Pension Scheme, Employee Share Ownership Programme, Various Health & Wellbeing Support Options, Gym Flex, Open Talent Market (internal mobility opportunities + access to mentors & projects globally), Shopping & Dining Discounts, Learning Portal and much more.

At Schneider Electric, Diversity & Inclusion is at the heart of our organisation. We recognise that embracing diversity unlocks innovation and creativity and fosters collaboration. Our teams are stronger to drive the company's future.

We are proudly participating in the Disability Confident Program offering support to people in the workplace who consider themselves living with a disability.

Apply now to be part of a team that keeps industries powered and running.

Looking to make an IMPACT with your career? When you are thinking about joining a new team, culture matters. At Schneider Electric, our values and behaviours are the foundation for creating a great culture to support business success. We believe that our IMPACT values – Inclusion, Mastery, Purpose, Action, Curiosity, Teamwork – starts with us. IMPACT is also your…