Criticality Safety Specialist

1 month ago


Preston, Lancashire, United Kingdom National Nuclear Laboratory Full time
Job Description for Criticality Consultant

This is an exciting opportunity to join the National Nuclear Laboratory (NNL) as a Criticality Consultant, where you will play a critical role in ensuring the safe and secure operation of nuclear facilities.

As a Criticality Consultant, you will be responsible for providing criticality safety advice and assessment for NNL's own activities and for customers across different licensed sites. You will work closely with a wide range of teams from safety, technical, and delivery within NNL to develop technical skills within the Criticality area under the direction and mentorship of senior colleagues.

The role involves:

  • Working with a wide range of teams from safety, technical, and delivery within NNL.
  • Supporting the technical delivery of projects under the direction of the Criticality Technical Lead.
  • Developing the technical capability and skills for criticality safety assessment.

You will have relevant experience in criticality safety, safety cases, or related technical disciplines, alongside experience delivering to the required time, cost, and quality meeting the customer expectations.

At NNL, we support working flexibly, can accommodate homeworking, and can be flexible about location, although some travel will be necessary, to support business needs.

The location of this role is flexible and can be based at Sellafield, Workington, or Preston.

Main Responsibilities for Criticality Consultant
  • Technical delivery of projects in the criticality area to time, cost, quality, value, and service requirements (working under direct supervision). Customers may include any UK civil or defence nuclear facility or operator (including NNL laboratories).
  • Develop customer and stakeholder network within own project areas.
  • Contribute to IR&D projects.
  • Develop technical awareness of NNL capabilities within the criticality safety area.
  • Developing individual SQEP skills for Criticality under the guidance of a mentor.
  • Attendance at relevant national industry groups.
Essential Criteria for Criticality Consultant
  • Degree qualified or equivalent level of demonstrable technical capability.
  • SQEP 1-2 with some experience in criticality safety.
  • Basic level of knowledge in the specialised field of criticality safety assessment.
  • Ability to both act independently, under guidance, and to work in a team.
  • Good communication skills.
  • Ability to obtain SC level security clearance (this includes but is not limited to identity, employment, financial, and criminal record checks plus 5 years' worth of UK residency).
Desirable Criteria for Criticality Consultant
  • Membership of a professional institution.
  • Ability to develop good networking skills.
Why join us?

NNL is an incredible place to work, where people do things that have never been done before. A place where people push boundaries to further themselves, the business, and society as a whole.

This is a place where personal and professional opportunities are limitless. If you want to change the world, if you want to tackle climate change, if you want to help advance medical science, if you want to help put things in space, if you want to answer the big questions, if you want to work with extraordinary materials, if you want to meet great people, learn new skills, challenge yourself, work flexibly, and build a long successful career with the power to make a real impact... you can do it all here.

Equality, Diversity, and Inclusion

NNL has a vision for Equality, Diversity, and Inclusivity (ED&I) where NNL aims to be an inclusive workplace that attracts diverse talent through transparent and equal policies and procedures. We want you and the diverse mix of people that we employ, customers that we service, and stakeholders that we influence to feel valued. We encourage a workplace culture where everyone can thrive with a sense of belonging.



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