Senior Substation Primary (HV Plant) Design Engineer

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Senior Substation Primary (HV Plant) Design Engineer – Contract (Inside IR35)

We’re looking for an experienced Senior Substation Primary (HV Plant) Design Engineer to join a leading engineering team delivering major UK transmission & distribution substation projects.

This is a senior technical role working across the full lifecycle — from FEED and concept design through to detailed design, construction support, and commissioning — with real responsibility for technical delivery and design quality.

What you’ll be doing:

  • Leading HV substation primary plant design for transmission projects
  • Producing and reviewing HV layouts, elevations, and general arrangements
  • Developing earthing designs, reports, and calculationsPreparing HV plant technical specifications and equipment requirements
  • Carrying out HV busbar calculations and design assessments
  • Developing mechanical interlocking and maintenance access arrangements
  • Supporting FEED, detailed design, and tender stages
  • Reviewing technical bids and supplier submissions
  • Participating in design reviews, hazard studies, and technical workshops
  • Working closely with multidisciplinary teams, suppliers, and contractors
  • Supporting construction and commissioning activities
  • Mentoring junior engineers and supporting capability development
  • Attending client meetings and occasional site visits

What we’re looking for:

  • Degree in Electrical Engineering (or equivalent)
  • Strong experience in HV substation primary plant design
  • Background in transmission & distribution projects (up to 400kV desirable)
  • Familiarity with utility standards (e.g. National Grid, SPEN, SSEN or equivalent)
  • Experience delivering FEED and detailed design packages
  • Strong understanding of HV electrical systems and substation design principles
  • Experience working in multidisciplinary engineering environments
  • Strong technical review and quality assurance capability

What’s on offer:

  • Work on major UK transmission and substation infrastructure projects
  • Senior technical role with genuine design ownership
  • Hybrid working with flexibility across UK office locations
  • Collaborative multidisciplinary engineering environment

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Company: Mane Contract Services
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Job Description:

Senior Substation Primary (HV Plant) Design Engineer – Contract (Inside IR35)

We’re looking for an experienced Senior Substation Primary (HV Plant) Design Engineer to join a leading engineering team delivering major UK transmission & distribution substation projects.

This is a senior technical role working across the full lifecycle — from FEED and concept design through to detailed design, construction support, and commissioning — with real responsibility for technical delivery and design quality.

What you’ll be doing:

  • Leading HV substation primary plant design for transmission projects
  • Producing and reviewing HV layouts, elevations, and general arrangements
  • Developing earthing designs, reports, and calculationsPreparing HV plant technical specifications and equipment requirements
  • Carrying out HV busbar calculations and design assessments
  • Developing mechanical interlocking and maintenance access arrangements
  • Supporting FEED, detailed design, and tender stages
  • Reviewing technical bids and supplier submissions
  • Participating in design reviews, hazard studies, and technical workshops
  • Working closely with multidisciplinary teams, suppliers, and contractors
  • Supporting construction and commissioning activities
  • Mentoring junior engineers and supporting capability development
  • Attending client meetings and occasional site visits

What we’re looking for:

  • Degree in Electrical Engineering (or equivalent)
  • Strong experience in HV substation primary plant design
  • Background in transmission & distribution projects (up to 400kV desirable)
  • Familiarity with utility standards (e.g. National Grid, SPEN, SSEN or equivalent)
  • Experience delivering FEED and detailed design packages
  • Strong understanding of HV electrical systems and substation design principles
  • Experience working in multidisciplinary engineering environments
  • Strong technical review and quality assurance capability

What’s on offer:

  • Work on major UK transmission and substation infrastructure projects
  • Senior technical role with genuine design ownership
  • Hybrid working with flexibility across UK office locations
  • Collaborative multidisciplinary engineering environment

#J-18808-Ljbffr…

Posted: May 17th, 2026