Senior Mechanical Engineer -Nuclear in Warrington, Cheshire

Contract role – Hybrid Warrington office – £51-55/hour Inside IR35.

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• Safely receives SNM packages from existing storage locations.
  
• Retreats and repackages these into new 100‑year storage packages.
  
• Transfers them to the SPRS facility for secure storage until 2120.
  

This is a unique opportunity to contribute to one of the UK’s most important nuclear safety projects, ensuring materials remain safe and secure for the future.

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• Plan and coordinate engineering and design activities.
  
• Develop engineering solutions for complex projects, from concept through to manufacture.
  
• Support manufacturing and testing queries, design changes, and configuration management.
  
• Produce and review technical reports, specifications, and calculations.
  
• Present engineering solutions to stakeholders and at design reviews.
  
• Deliver scope of work to agreed timescales and budgets.
  

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• Strong background in mechanical engineering design for plant and equipment.
  
• Proficiency with 3D CAD systems (e.g., Inventor, SolidWorks, ProE) and CAD management tools.
  
• Familiarity with 2D drawing standards (BS 8888).
  
• Experience leading designers in the production of drawings and documentation.
  
• Knowledge of plant layout, installation, alignment, and testing of equipment.
  
• Experience writing and checking works test documentation, integrated test documents, and O&M manuals.
  
• Ability to support manufacturing, inspection, and test queries.
  
• Office‑based availability (typically blended 3/2 Office/WFH).
  

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• Experience in authoring/checking Design Justification Reports (DJRs).
  
• Knowledge of safety cases and Sellafield engineering standards.
  
• Experience designing for nuclear environments and glovebox systems.
  
• Understanding of CDM, SoMSR, PUWER & LOLER.
  
• Willingness to travel occasionally outside the UK to support manufacturing and testing.