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Principal EC&I Engineer / Protection Engineer

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ASSYSTEM

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Location:
United Kingdom , Warrington

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Category:
Energy

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Contract Type:
Not provided

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Salary:

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Job Description:

Join Assystem as a Principal EC&I Engineer/ Protection Engineer!

Job Responsibility:

  • Lead & deliver: Guide EC&I engineering teams in delivering innovative solutions for complex projects
  • Creation and updating: The working ETAP model for the project
  • Production of: fault calculations
  • Protection of: reports and arc flash risk assessments
  • Power and protection specialism: Support to the wider design team. Contribute to the updating of Sellafield’s engineering standards and best practice
  • Plan & prioritize: Shape project plans, prioritizing Health & Safety and Environmental standards
  • Design reviews: Act as Lead Engineer, overseeing design reviews, technical discussions, and formal evaluations
  • Support & collaborate: Provide expert advice, supporting both staff and clients through technical challenges
  • Mentor & motivate: Mentor team members, set objectives, and foster a collaborative work environment
  • Optimize: Ensure projects stay on budget and aligned with schedules, working closely with Project Managers
  • Client liaison: Serve as the primary technical contact, coordinating with clients throughout each project

Requirements:

  • Working knowledge of BS EN 60909 Fault Calculations
  • Working knowledge of power distribution modelling software
  • Experience with Protection and control systems (11kV & 400V)
  • Experience of 11kV & 400V substation design
  • Experience of unit protection calculations (differential & high-impedance schemes)
  • Relevant design experience relating to Electrical infrastructure upgrades and working with aging assets
  • Working knowledge of the Sellafield Distribution Network and its electrical safety practices
  • A degree in a relevant engineering discipline (generally Electrical, Instrumentation or Control Engineering) or HNC / HND with substantial relevant professional experience
  • Hold a minimum of a Security Check (SC) clearance without any caveats
  • Must be a UK national or in MoD approved cases a Dual National from a non-ITAR country

Nice to have:

  • Experience of Sellafield Design Processes
  • Experience with other CAD tools namely Trimble, ERACs and Digsilent
  • Experience with IEC61850 and power system SCADAs
  • Chartered Engineer or working towards chartership with the relevant discipline
  • Degree in a relevant engineering discipline (generally Electrical, Instrumentation or Control Engineering at Honours level or higher

Additional Information:

Job Posted:
February 19, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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