Senior Criticality Consultant

Job Reference:
Number of Positions:
Contract Type:
Permanent - Full Time
Working Hours:
Closing Date:
Business Area:
Nuclear Operations
Business Unit:
Nuclear Operations
Sellafield, Cumbria (Central Lab)

Job Introduction

We are looking for an experienced, enthusiastic Senior Criticality Safety Consultant to join our team and help us deliver some of the UKs most cutting-edge nuclear projects.  NNL are at the forefront of nuclear research & development in the UK and beyond with a wide range of projects that require creative criticality safety support.  

You will be expected to provide technical leadership and advice to NNL laboratories and external customers, enhance technical skills and develop the team's capability, and lead activities in support of NNL's national reputation in the criticality area.  If you are able to show a track record of leading the technical delivery of projects, the ability to work as part of a team to deliver criticality safety, and have the integrity to ensure that the outcome is safe and fit for purpose then a role in NNL might be right for you.

The team you will join is a dedicated, hard-working group who are passionate about the work they do.  We support working flexibly, can accommodate homeworking, and can be flexible about location between our sites in the North West of England; some travel will be necessary to support business needs.

Main Responsibilities

The main responsibilities for the Senior Criticality Consultant as follow:

  • Leading technical delivery of criticality safety to operations and projects in NNL laboratories and external customers to time, cost, quality, value and service requirements, including:
    • direction and supervision of other criticality consultants.
    • management of relationships with the Laboratory Manager, Projects/PMA, Compliance, NNL Executive and CEO, other safety and security disciplines, and other designated safety roles.
    • management of relationships with external stakeholders, e.g., customer, site licence company and the Operations Control Manager, regulator (ONR) and INSA.
    • advice, training and independent inspection.
  • Leading NNL’s criticality support consultancy to external customers.
  • Provide expert knowledge of criticality safety assessment including being up to date with developments in methodology and approach.  National level subject matter expert.
  • Leading criticality support to multi-disciplinary teams addressing safety challenges.
  • Leading the identification and development of new opportunities for the team, including technical support to bids.
  • Use initiative to develop new capabilities through innovative approaches and providing insight.  Technical lead on complex IR&D projects and submissions.
  • Maintain technical awareness of both NNL and external competitors’ capabilities within the broader criticality safety area.  Identify best practice to improve the team.
  • Developing team SQEP skills for Criticality, e.g., mentoring and supervision.  Design and deliver specialist criticality training.
  • Membership of relevant national industry groups to represent NNL.

The Ideal Candidate

Essential skills for the Senior Criticality Consultant:

  • Degree qualified or equivalent level of demonstrable technical capability.
  • SQEP 3 with demonstrable experience in criticality safety.
  • Preferably Chartered Membership of a professional institution, or working towards this qualification
  • Excellent level of knowledge in the specialised field of criticality safety assessment.  Detailed knowledge of advanced assessment techniques.
  • Proven ability to act independently, under own initiative, while supervising other members of the team
  • Strong communication skills, including multi-site working.
  • Excellent teamworking skills, with ability to inspire the work of a team.
  • Experienced in mentoring and developing technical skills.
  • Excellent networking skills, maintaining network across the criticality field nationally.

About The Company

Grounded in robust science and decades of experience, National Nuclear Laboratory (NNL) is the authoritative voice in the UK and beyond for technological development within the nuclear power sector.

Our unparalleled understanding of the science, challenges and opportunities makes us an unrivalled authority and partner in the field, providing experts, technologies, and access to cutting-edge facilities to organisations around the world.

Harnessing potential technologies and translating them into to industry-ready solutions means our pioneering approach spearheads international improvement and technological progress.

We work on projects as small as drilling a hole to analyse underground wastes with our integrated micro drilling technology, or as large as developing state-of-the-art power systems for spacecraft, based on radioactive materials

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.