Senior Engineer – Nuclear (Radiation Physics & Shielding)

BAE Systems; Millom; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading defense contractor in the UK is looking for a Senior Radiation Physicist to conduct safety assessments for the nuclear submarine fleet. The role includes developing radiation detection systems and ensuring nuclear safety standards are met. Candidates should have a degree in a relevant field and experience in radiation physics. This position offers hybrid working arrangements and various lifestyle benefits.

Benefits

Competitive pension scheme

Employee share plans

Flexible health and wellbeing benefits

Green car scheme

Private health plans

Shopping discounts

Annual incentive eligibility

Qualifications

• Degree in a relevant field such as Mathematics or Physics.
• Knowledge/experience in radiation physics.
• Understanding of nuclear safety practices.

Responsibilities

• Conduct radiological safety assessments.
• Assess radiation damage risk to electronics.
• Develop and deploy radiation detection systems.
• Complete systems engineering design of secondary shielding system.
• Run and analyse point kernel and monte-carlo calculations.

Skills

Radiation physics knowledge

Nuclear engineering experience

Radiological safety assessments

ALARP justifications

Radiation transport methods

Education

Degree in Mathematics, Physics, Chemistry, Engineering, Nuclear Science or related field

Job description

Job title:

Senior 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:

• Conducting radiological safety assessments
• Assessing radiation damage risk to electronics
• Developing and deploying radiation detection systems
• Completing the systems engineering design of the secondary shielding system
• Running and analysing point kernel and monte-carlo calculations
• Providing technical advice on impact of changes and defects across the whole boat
• Developing ALARP justifications in support of design decisions

Your skills and experiences:

• Degree in Mathematics, Physics, Chemistry, Engineering, Nuclear Science, or a related field
• Demonstrable knowledge/experience of radiation physics, nuclear engineering, nuclear safety or similar
• Knowledge/experience of Radiological safety assessments, ALARP justifications or similar
• Knowledge/experience of radiation transport methods (ATTILLA/MCBEND/MCNP etc.)

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:

27th October 2025

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.

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