HV Commissioning Engineer

Totec; Jersey Marine; Remote; GBP 65,000 - 79,000; Full time

Benefits offered by this job

Overtime pay

Travel time paid

Overnight allowance

Meal/food allowance

Varied UK projects

Job summary

Totec is seeking a High Voltage Commissioning Engineer to lead testing and commissioning across the UK. You will handle HV systems from 11kV to 132kV, including grids, substations, renewables, and industrial sites.

This role offers nationwide deployment with a focus on safety, documentation, and client liaison. The ideal candidate holds an electrical engineering degree and relevant HV certifications, with strong experience in protection relays and SCADA.

Qualifications

• 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.

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

Protection relay configuration

Secondary injection testing

Electrical safety regulations

Reading schematics

Documentation and reporting

Communication skills

Education

Electrical Engineering degree

SAP on HV networks

G99/G59 testing

National Grid certification (or willingness)

ECS/CSCS Card

18th Edition BS7671

First Aid at Work & Manual Handling

Tools

Omicron

Megger

SCADA systems

Protection relay testing equipment

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.