Reactor Physicist / Engineer

Job Reference: NNL/TP/24943/944
Number of Positions: 1
Contract Type: Permanent - Full Time
Salary: Salary from £36,160
Working Hours: 39
Closing Date: 26/01/2021
Job Category: Fuel, Reactor and Reprocessing
Business Unit: Fuel, Reactor and Reprocessing
Location: Preston, Lancashire

Job Introduction

A vacancy has arisen in the Nuclear and Reactor Physics team for a high calibre, motivated nuclear engineer or nuclear reactor physicist with a particular interest in undertaking reactor physics modelling, nuclear new build and ANT(Advanced Nuclear Technologies) ((Small Modular Reactors (SMR) & Advanced Modular Reactors (AMR)) and BEIS AFCP (Advanced Fuel Cycle Programme) work as part of a key role within the team. Reactor modelling is one of the key activities in the development of future UK nuclear technologies and therefore feeds into and influences the wider shaping of UK energy policy and the strategy for moving towards a low carbon future.

Main Responsibilities

  • Provide specialist technical support to the principal technical lead ensuring the delivery of high-quality outputs.
  • To carry out designated work packages to standards of safety, cost, quality and time. 
  • Provision of specified services to internal/external customers to agreed standards. 
  • Ensures all relevant regulations and procedures are understood and adhered to when delivering projects, working within budgetary limits. 
  • Where appropriate, may contribute to estimation of budgetary information and procedures.
  • Where appropriate will maintain good contacts with individuals/organisations at all status levels internal and external to the company.
  • Complies with legislative, regulatory and company policy standards and procedures e.g. safety, quality, risk, security etc applicable to the role.
  • To support and collaborate in various meetings as required, supported by the technical lead (as required).
  • Take responsibility and be pro-active in the development and application of appropriate technical processes and systems applicable to their work area.

The Ideal Candidate


  • A relevant Nuclear PhD degree with a focus on nuclear engineering or reactor physics. Alternatively, a relevant Post graduate MSc degree with focus on nuclear engineering or reactor physics e.g. Nuclear FiRST, PTNR (Physics and Technology of Nuclear Reactors), etc. ideal) or a similar qualification, with demonstrable work experience. 
  • Knowledge of programming (C++ and/or Fortran or other relevant codes) with some practical experience.
  • Good working knowledge of Microsoft Office products including MS Office, MS Excel and MS PowerPoint and other relevant tools.

Desirable Skills/Qualifications:

  • Valid UK driving license.
  • Experience in using at least two nuclear codes (One from each listed in (1) and (2)) such as:
    • Thermal-hydraulics code – e.g. COBRA, RELAP and/or TRACE.
    • Nuclear codes e.g. SERPENT, CASMO, WIMS, PANTHER, MCNP and/or SCALE.
  • Experience of working with ANTs and/or New build projects preferable.
  • Member of a professional institution.
  • Chartered Physicist, Engineer or Scientist (or working towards Chartership).
  • Experience of using UNIX/LINUX operating systems.

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.