Job Title: Principal Radiation Physicist

Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role

Salary: Competitive

What you’ll be doing:

Supervising and conducting analysis and experiments to support system qualification

Supporting progression of design optimisation

Producing and reviewing radiological safety justifications for proposed design solutions

Direct development of in-house toolsets in support of the department goals

Leading detailed shield design, balancing build requirements alongside system performance requirements

Your skills and experiences:

Essential:

Relevant STEM degree in Physics/Mathematics/Chemistry/Nuclear Engineering

Demonstrable experience of radiation transport codes such as MCNP/MCBEND/Attilla

Understanding of radiation physics

Experience of radiation safety studies & behaviours

Experience of radiation metrology

Knowledge of the ALARP principle

Desirable:

Experience of managing technical projects

Benefits

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The Radiation Physics & Shielding team

Our team is responsible for the design and validation of radiation shielding for the UK’s nuclear powered submarine fleet. We are engaged across three different submarine programmes in different stages of the engineering lifecycle designing new shields, providing design change assessment into the build programme, and conducting radiation metrology on-board during commissioning. Alongside our primary work we conduct radiological safety studies for several other areas, design novel radiation detectors and are developing capability in the field of radiation damage to electronics. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria.

Why BAE Systems?

This is a place where you’ll be able to make a real difference. You’ll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you’ll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

Closing Date: 5th January 2026

We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible.

Due to the festive season, there may be a delay in the processing of your application. Your application is important to us, and we will respond as soon as possible. Thank you for your understanding.

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