Frazer-Nash Consultancy
Senior Nuclear Physics Consultant
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Title
Senior Nuclear Physics Consultant
Role: Senior Nuclear Physics Consultant
Salary range: £70,000 to £85,000 per annum depending on experience
Location: Bristol, Gloucester, Plymouth or Leatherhead
Working Pattern: We operate a flexible hybrid working pattern at Frazer-Nash, with time split between the office, client sites and working from home.
Closing date: 25th October but we would encourage early applications
The Nuclear Renaissance is Here
From gigawatt-scale reactors to next-generation systems, the UK’s nuclear future depends on engineers who thrive on solving complex physical problems and delivering deep technical insight backed by robust analysis.
We are seeking an experienced Senior Nuclear Physics Consultant to help shape critical decisions, support safety cases, and strengthen the next generation of nuclear capability.
Your Work Will Help To
- Tackle safety-critical engineering challenges
- Support confident regulatory and design decisions
- Strengthen the UK’s civil nuclear capability
- Deliver high-quality, trusted consultancy advice to our clients
About Frazer-Nash In Nuclear
Frazer-Nash has over three decades of experience supporting the UK nuclear sector. Our multidisciplinary teams work across civil nuclear operations, new-build programmes and decommissioning, helping our clients meet exacting technical and regulatory requirements.
Our physicists work closely with safety and systems teams, providing insight into complex plant behaviour and supporting clients through design, justification, and regulatory engagement. We empower our consultants to take ownership of their work, build deep technical expertise, and have visible impact.
Why Join Frazer-Nash?
- Work on nationally significant nuclear programmes with real societal impact
- Take ownership of technically challenging work and client delivery
- Develop your career in a supportive, technically ambitious consultancy
- Be part of a collaborative team shaping the future of nuclear engineering in the UK
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Why this Role?
As a Senior Nuclear Physics Consultant, you will apply advanced analytical techniques and modelling tools to understand and explain complex physical behaviour in nuclear systems. You will contribute across the full consultancy lifecycle, from technical analysis and interpretation through to client engagement and business development.
Taking the lead
You will manage technical work packages, mentor others, engage directly with clients, and support project delivery, while leading the capability growth in your area.
Variety of work
Our consultants typically work on multiple projects at once, ranging from short, focused studies to long-term programme support across the nuclear lifecycle.
Growing capability
You will lead specialist capability development within your niche area, be involved in client discussions, campaigning and winning work.
Key Responsibilities Include
- Developing and maintaining models of nuclear plant cores and systems using industry-standard codes.
- Analysing fault sequences, transients, and system behaviours to inform design decisions and nuclear safety cases.
- Providing authoritative interpretation of model results and underlying physical phenomena.
- Supporting model verification, validation, and best-practice application.
- Leading a specialist capability area within the company.
- Communicating complex technical outputs clearly and concisely to clients, regulators, and internal stakeholders.
Technical Experience
What We’re Looking For:
- Strong understanding of nuclear physics, and an area of expertise in reactor physics, neutron kinetics, criticality or shielding.
- A degree in Engineering, Physics, Applied Mathematics, or a related discipline, or equivalent relevant experience.
- Demonstrable experience in supporting reactor core design and/or operations, using relevant lattice physics, neutron kinetics, or neutron transport codes.
- Experience of transient and fault analysis within nuclear safety contexts.
- Ability to interpret, validate, and clearly explain complex modelling outputs.
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Personal And Consultancy Skills
- Ability to independently manage and deliver work to meet client requirements.
- Experience in leading proposal writing, client engagement, and business development.
- Strong communication skills, with the ability to engage effectively through meetings, presentations, written reports, commercial bids, and technical discussions.
Due to the nature of the work that Frazer-Nash Consultancy undertakes, candidates will be required to undergo pre-employment screening and must be able to satisfy clearance criteria for UK National Security Vetting.
Benefits
We provide our people with an excellent benefit and offering package that comprises:
- Competitive salary with yearly reviews
- 25 days holiday + the opportunity to buy 5 days.
- A company that has its heart in the right place and a welcoming work culture.
- Happy to talk flexible working
- Enhanced parental benefits
- Company pension scheme
- Targeted professional development
- Life assurance
- Private healthcare membership
- Bonus scheme linked into company performance
- Paid membership fees to a professional institution
- Support in attaining professional membership
- Cycle to work scheme
- Season rail ticket loan
- And further optional benefits you can tailor to your personal requirements
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