Senior Electrical Design Engineer (Substations)

  • Auxo Future Build
  • Mar 11, 2026
Full time Engineering

Job Description

Senior Electrical Design Engineer (Substations)

London or Manchester - Hybrid Working

Auxo Talent are currently seeking an experienced Senior Electrical Design Engineer (Substations) to join a leading global consultancy specialising in the development and operation of high-performance data centre facilities. Locations in London or Manchester, Dublin and Amsterdam.

The successful candidate will play a key role in the detailed design and delivery of high voltage substations supporting large-scale data centre infrastructure projects. This is a client-facing role requiring strong technical expertise and the ability to collaborate with multidisciplinary teams.

Key Responsibilities of Senior Electrical Design Engineer (Substations)

  • Lead detailed substation design for systems ranging from 110kV to 400kV.
  • Perform power system studies using ETAP including:
  • Load Flow Analysis
  • Short Circuit Analysis
  • Harmonic Analysis
  • Protection and Coordination Studies
  • Cable calculations (HV, MV and LV)
  • Support the Electrical Engineering team in the execution of technically sound substation designs compliant with international standards including IEC, IEEE and BS.
  • Provide technical guidance to Architect Engineers (AEs) and EPC contractors from concept design through to commissioning.
  • Participate in all design stages including campus planning, detailed design, IFC documentation and construction support.
  • Conduct design reviews ensuring compliance with client specifications and national grid codes.
  • Collaborate with multidisciplinary teams to integrate electrical systems within overall data centre infrastructure designs.

Day-to-Day Responsibilities

  • Attend internal and external design coordination meetings.
  • Prepare technical reports, calculation packages and design documentation.
  • Review milestone design submissions and provide feedback through collaboration platforms.
  • Work closely with internal teams and external stakeholders.
  • Identify opportunities for innovation, cost optimisation, sustainability improvements and carbon reduction.
  • Travel
  • Occasional travel to project sites across EMEA (typically short trips of 2-3 days).

Requirements

  • Minimum 10 years' experience in substation design.
  • Strong experience working on high voltage substations between 110kV and 400kV.
  • Solid understanding of protection and control concepts within substation electrical architecture.
  • Proven experience performing power system studies using ETAP.
  • Experience collaborating with EPC contractors and multidisciplinary engineering teams.

Software Essential

  • ETAP
  • SKM
  • Amtech
  • Ampcalc
  • DigSilent
  • Cymap

Location

Hybrid working with preferred locations in London or Manchester. Dublin and Amsterdam may also be considered.