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Mechanical Designer

Please Note: The application deadline for this job has now passed.

Job Introduction

The Engineering Design Team provides engineering design support across NNL and in the wider nuclear industry. We cover all aspects of engineering design such as optioneering studies, concept design, detail design, manufacturing, testing and installation. Our expertise includes the supply of active research and development rigs and analytical equipment, and the modification of existing nuclear process plant.

The role of the Mechanical Designer Engineer is to provide mechanical design and drafting support to design engineers for:

  • The design, build, testing, development, commissioning and on-site installation of active rigs and analytical equipment to support scientific research and development work in the nuclear industry.
  • The modifications of existing active and non-active nuclear facilities (e.g. for upgrades, changes in feeds or process requirements).
  • The troubleshooting of existing nuclear equipment and plant as required.
  • To perform paper based concept designs, strategic optioneering and ad-hoc research to client specifications, collating results, analysing data and the generation of technical reports.

Role Responsibility


  • Proficient in Autodesk design software such as AutoCAD / Product Design Suite, primarily Inventor.
  • Capable of developing engineered solutions from concept through to detailed design including manufacturing / fabrication drawings,  equipment / laboratory layouts and flow diagrams from a design brief and/or plant survey.
  • Capable of undertaking scoping calculations to support design and authoring design memos / short reports.
  • Proficiency in RasterDesign is desirable but not essential.
  • Role will require travel to Sellafield / Preston site as necessary to undertake site walkdowns / surveys, liaise with technical team, operators and plant commissioning personnel. Travel to equipment suppliers may also be necessary.
  • Requirement to travel is expected, between NNL locations and customer locations.



The Ideal Candidate

Essential Skills/Qualifications:

  • HNC / HND in Mechanical Engineering or closely related subject and a relevant level of experience.
  • IT proficiency expected in Microsoft Office products
  • Evidence of problem solving and seeking solutions.

Desirable Skills/Qualifications:

  • Good knowledge of nuclear plant operations.
  • Strong and supportive team player.
  • Self-motivated, high energy contributor.
  • Questioning attitude.

About the Company

NNL plays a key role in the UK and global nuclear industry. That means reducing the cost of clean-up and decommissioning, maintaining critical skills and attracting talented new people to the industry. We are the only UK organisation with the skills, facilities and expertise to provide technical support to all aspects of the nuclear industry. We pride ourselves on offering quality, value and service to every one of our customers.

National Nuclear Laboratory

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