Nuclear Physics Consultant

Frazer-nash View All Jobs

United States

Remote

USD 100,000 - 147,000

Full time

4 days ago

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Benefits offered by this job

Competitive salary

25 days holiday + buy 5 days

Private healthcare membership

Company pension scheme

Targeted professional development

Cycle to work scheme

Season rail ticket loan

Professional membership support

Job summary

Frazer-Nash Consultancy is seeking a Senior Nuclear Physics Consultant to apply advanced analytical techniques to complex nuclear systems, contributing across the consultancy lifecycle from technical analysis to client engagement.

You will lead technical work packages, mentor colleagues, and help win work while developing specialist capability in reactor physics, neutron kinetics and shielding.

Qualifications

A degree in Engineering, Physics, Applied Mathematics, or a related discipline.
Experience in reactor core design and operations using lattice physics, neutron kinetics, or neutron transport codes.
Experience with transient and fault analysis in nuclear safety contexts.
Ability to interpret and explain modelling outputs.

Responsibilities

Develop models of nuclear plant cores using industry-standard codes.
Analyse fault sequences, transients, and system behaviours to inform design decisions and nuclear safety cases.
Provide authoritative interpretation of model results and underlying physical phenomena.
Support model verification, validation, and best-practice application.
Lead a specialist capability area within the company.
Communicate complex technical outputs clearly to clients, regulators, and internal stakeholders.

Education

Engineering/Physics/Applied Mathematics degree

Tools

MCNP

Job description

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

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.

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.
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.

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: