Copello are now searching for a Principal Engineer – Nuclear Safety Substantiation on behalf of one of our Defence clients who are engaged on a significant programme.


This is an exciting time to join the business because of this programme, which is forecasted to last a significant number of years, providing a lot of opportunity and scope for development, progression and niche experiences.


Key deliverables include:

  • Overseeing and authoring nuclear substantiation documentation to support the site safety case
  • Reviewing calculations & analysis work
  • Supporting periodic review of safety
  • Taking ownership of deliverables and demonstrating a high level of autonomy
  • Providing support of implementation of substantiation requirements
  • Working closely with Human Factors, Site Safety Case and Engineering Authority Teams
  • Support in the development of other Nuclear Substantiation team members
  • Collaborate with the wider business on Nuclear substantiation related activities

Candidate requirements:

  • Broad understanding of multiple engineering discipline’s
  • Experience in nuclear or other high hazard, or highly regulated industry
  • Ability to produce high quality technical reports
  • Determined in driving all deliverable associated activities through due process 
  • Excellent stakeholder management


  • Any Nuclear safety case work
  • Chartered Engineer and/or member of a relevant professional body.
  • Degree qualified in an Engineering / STEM discipline.

Due to the security restrictions of this position, you must be a UK Passport holder and not hold any dual nationalities etc to be eligible for the Security Clearance.


For further information, please apply and we’ll be in touch.

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