Lead Offshore Substation HV Commissioning Engineer

Earthstream; Grimsby; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading developer in the offshore wind sector is seeking an experienced Lead Offshore Substation HV Commissioning Engineer to oversee commissioning activities for offshore substations. This 6-month contract role, based offshore in North East England, involves managing interfaces with OEMs and ensuring compliance with HSE and electrical standards. The position offers a competitive daily rate of £650–£750 and provides a strong likelihood of contract extension.

Qualifications

• Proven background in HV commissioning (132kV), ideally in offshore wind or substations.
• Strong leadership and coordination experience in multi-disciplinary teams.
• Excellent understanding of commissioning documentation and UK grid connection requirements.

Responsibilities

• Lead the HV commissioning team for offshore substations (66kV–400kV systems).
• Develop and oversee commissioning schedules, procedures, and test documentation.
• Ensure all commissioning activities comply with UK HSE, electrical, and offshore standards.

Skills

HV commissioning experience

Leadership and coordination

Familiarity with transformers and SCADA

Tools

GIS

Protection relays

Job description

Overview

Our client, a leading developer in the UK offshore wind sector, is seeking an experienced Lead Offshore Substation HV Commissioning Engineer to support one of their flagship offshore wind projects located off the northeast coast of England. This role will be key to the delivery and successful energisation of offshore substations.

Role

As the Lead HV Commissioning Engineer, you will oversee and coordinate all HV commissioning activities for the offshore substation(s). This includes managing interfaces with the client team, OEMs, and contractors to ensure commissioning is executed safely, efficiently, and to the highest technical standards. You’ll lead the documentation, testing, and energisation phases, acting as the focal point for HV systems delivery.

Responsibilities

• Lead the HV commissioning team for offshore substations (66kV–400kV systems)
• Develop and oversee commissioning schedules, procedures, and test documentation
• Manage interfaces between OEMs, EPC contractors, and client technical team
• Ensure all commissioning activities comply with UK HSE, electrical, and offshore standards
• Supervise FATs, SATs, and on-site testing through to energisation and handover

Requirements

• Proven background in HV commissioning (132kV ), ideally in offshore wind or substations
• Strong leadership and coordination experience in multi-disciplinary teams
• Familiarity with systems such as transformers, GIS, protection relays, and SCADA
• Offshore and electrical certifications, including:
  • GWO Basic Safety Training (BST)
  • GWO Sea Survival
  • BOSIET or FOET
  • HV Authorisation / Senior Authorized Person (SAP)
  • CompEx or HV Switching certificates (desirable)
• Excellent understanding of commissioning documentation and UK grid connection requirements

Contract: 6-month initial contract, strong likelihood of extension

Location: Offshore (North East England base, with some onshore coordination)

Rate: £650–£750 per day (Outside IR35)

Start: ASAP

For more info, do not hesitate to get in touch!