HV Commissioning Engineer

Totec; Swansea; Remote; GBP 65,000 - 79,000; Full time

Benefits offered by this job

Overtime pay

Travel time paid

Overnight allowance (£40)

Food allowance (£40)

Diverse UK projects

Job summary

Totec is seeking a High Voltage Commissioning Engineer to join its rapidly expanding team. You will lead testing and commissioning of electrical systems from 11kV to 132kV on grid connections, substations, and renewable energy projects across the UK.

The role offers a base salary of £72,000 with overtime opportunities that can push earnings beyond £100,000. You will plan commissioning activities, perform functional testing, fault-finding, and produce site documentation while liaising with

Qualifications

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

Responsibilities

• 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.

Skills

HV commissioning

Electrical engineering

Documentation

Safety regulations

Communication

Independent work

Education

Electrical engineering degree

Tools

Omicron

Megger

Job description

High Voltage Commissioning Engineer

Salary: £72,000 per annum base plus overtime (potential earnings over £100,000)

Duration: Permanent

Location: Nationwide UK

Job Type: Remote

Our client is an established fast-growing company based in South Wales working on exciting high voltage infrastructure projects across the UK. As part of their continued growth, they are looking for a High Voltage Commissioning Engineer to join the close-knit, supportive team Nationwide across the UK.

As a High Voltage Commissioning Engineer, you will play a critical role in the testing and commissioning of electrical systems from 11kV up to 132kV. You will work on a range of grid connections, substations, renewable energy projects, and industrial installations.

Responsibilities

• 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

Experience Required

• 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

Essential Qualifications

• HNC/HND or Degree in Electrical Engineering or 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 willingness to obtain)
• ECS/CSCS Card
• 18th Edition IET Wiring Regulations (BS7671) (desirable)
• First Aid at Work & Manual Handling (current or valid)

What’s on Offer

• Potential earnings exceeding £100,000 per annum Basic detailed above.
• Excellent overtime rates - Time and a half for the first 5 hours worked on a Saturday, followed by double time, time and a half for midweek overtime & double time for all hours worked on a Sunday.
• Paid travel time - You are paid from the moment you start your engine through to arriving back home. Travel time is paid at the standard hourly rate.
• Regular overtime opportunities - A contracted working day is 8 hours, employees typically work around 10-hour days from Monday to Friday, with the additional hours paid as overtime.
• £40 overnight allowance for each night away, giving you flexibility to spend it as you choose.
• £40 food allowance provided via a prepaid card for overnight stays.
• Varied work across the UK, with current and upcoming commissioning projects in locations including Southampton, Exeter, London, Wycombe, Dover, Wrexham and Stockton-on-Tees.
• Strong earning potential, with overtime, enhanced weekend rates and allowances offering the opportunity to increase your overall annual earnings beyond the basic salary.