HV Cable Engineer

Company: Coalesce Management Consulting
Apply for the HV Cable Engineer
Location: London
Job Description:

Job Title: Cable Engineer – HV (400kV)

Location: (Remote)

Start Date: ASAP (Late April / Early May)

Contract Duration: 13 Months

Engagement: Contract

Position Overview

CMC is supporting a major UK transmission infrastructure scheme requiring senior HV Cable Engineering support for a large-scale cable system.

The successful consultant will join the cable engineering team and take a lead role in supporting the delivery of a 400kV cable system associated with a complex underground route connecting into overhead line interfaces.

Cable Systems / Delivery Responsibilities

  • Take a lead role in developing and reviewing cable system design deliverables for a route.
  • Review available project scope documentation, design information, and programme inputs to

help define cable engineering responsibilities, identify technical gaps, and raise engineering

queries where required.

  • Support the development of cable system designs from feasibility and concept stage through to FEED and detailed design as the project progresses.
  • Develop cable design deliverables associated with cable installations, including route layouts, installation considerations, design drawings, technical notes, and engineering reports.
  • Prepare and review jointing strategies, joint bay arrangements, and bonding / cross-bonding

designs appropriate for a long-distance 400kV cable system installed predominantly within

tunnel infrastructure.

  • Support engineering assessment of cable pulling requirements, installation methodology, shaft

interfaces, and associated tunnel installation constraints.

  • Contribute to design activities associated with steelwork support systems, bracketry

arrangements, fixings, and mechanical force considerations related to cable installation within

the tunnel environment.

  • Support technical coordination with adjacent disciplines including tunnelling, civils, ventilation,

environmental, and contractor teams to ensure cable designs are practical, coordinated, and

aligned with the wider scheme requirements.

Required Experience

  • Minimum 6+ years experience in HV cable system design within power infrastructure projects.
  • Demonstrable experience delivering EHV cable systems (ideally 400kV).
  • Strong technical capability across cable design, installation, bonding, and jointing.
  • Experience on tunnel cable projects or complex underground installations desirable
  • Strong understanding of cross-bonding, jointing strategy, and long-route cable design

considerations.

  • Experience supporting design across multiple stages
  • Strong understanding of National Grid standards and transmission requirements.
  • Ability to work within uncertain / evolving scope environments and support engineering

definition.

  • Experience working across multi-disciplinary interfaces in complex infrastructure projects

Posted: April 29th, 2026