Reactor and Systems Performance Consultant in Manchester

• Title: Reactor and Systems
• Performance
• Consultant

Role: Reactor and Systems Performance Consultant Salary range: £50,000–£65,000 per annum depending on experience

• Glasgow
• Working

Pattern: We operate a flexible hybrid working pattern at Frazer-Nash, with time split between the office, client sites and working from home.

We encourage early applications, as vacancies may close once we receive sufficient 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.

At Frazer‑Nash, our reactor and systems performance specialists sit at the heart of our work in nuclear safety, design, and assurance across a range of clients, technologies and technical disciplines.

We are seeking people with experience of reactor and systems performance modelling to help shape critical decisions, support safety cases, and strengthen the next generation of nuclear capability.

Whether your expertise lies with reactor physics, thermal hydraulics, fuel performance or any related nuclear discipline, you will find a place with us as we expand our teams in support of clients from across the industry.

• We are looking for people with experience in any of the following disciplines:
• Reactor physics
• Thermal hydraulics
• Fuel performance
• Fault studies
• Shielding and radiological protection
• Or any other reactor or systems performance discipline

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 reactor and systems performance specialists work closely with design and safety engineers, 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 Reactor and Systems Performance modeller, you will apply advanced analytical techniques and modelling tools to understand and explain complex behaviours 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, engage directly with clients, and support project delivery, while collaborating with supportive colleagues and mentoring and guiding less experienced engineers.
• 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 contribute to winning work, client discussions, and the continued growth of our reactor and systems performance capability across existing and emerging nuclear programmes.

Key responsibilities include

• Developing and maintaining models of nuclear plant systems using industry‑standard codes,
• Analysing plant performance under a wide range of operating scenarios 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,
• Communicating complex technical outputs clearly and concisely to clients, regulators, and internal stakeholders.
• What We’re Looking For
• Technical experience: Demonstrable experience in the application of your technical discipline within the nuclear industry, supporting plant design and/or operations,
• A strong understanding of the underlying physics and engineering principals that underpin your technical discipline,
• A degree in Engineering, Physics, Applied Mathematics, or a related discipline, or equivalent relevant experience,
• 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 contributing to proposal writing, client liaison, and business development
• The ability and desire to apply your knowledge and expertise to adjacent disciplines – broadening your portfolio of experience and supporting our clients in a flexible manner.
• Strong communication skills, with the ability to engage effectively through meetings, presentations, written reports, commercial bids, and technical discussions
• The ability to work as part of a broad team, including supporting colleagues with formal and informal mentoring and training

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

• 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

Frazer-Nash is a leading systems, engineering and technology company.

We help organisations deliver innovative engineering and technology solutions to make lives safe, secure, sustainable, and affordable.

With over 1000 employees, we work from a network of nine UK and four Australian locations.

Our people apply their expertise to develop, enhance and protect our clients' critical assets, systems and processes.

We use our skills and talents to ensure a sustainable future for society.

Our work helps deliver a safe and secure world, where natural resources are conserved, and clean energy is available to all.

And we focus on actions to reduce climate change; supporting rapid and far-reaching transformations in the delivery of energy, security, industry, and transport.

At the heart of our business are a set of self‑defined core values.

These are part of our DNA and we’re committed to upholding them – internally as part of our Frazer‑Nash family; in the way we work with our customers; and when we engage with the wider world.

• We care
• At Frazer-Nash, we care about each other; always looking to collaborate and see things from the other person’s point of view
• We offer mutual support, learn from one another, and work as a team to deliver the best results
• Everyone has a voice, and we all make the time to listen
• We will work with openness and collaborate effectively – thinking about our clients and our people, and responding to their needs
• We care about the difference we make to the wider world.
• We are trusted
• Effective collaboration is founded upon trust. We earn the trust of our customers and colleagues by delivering on the commitments we have made to them.
• We deliver success
• We deliver value and success to our customers and to our business. We continually strive to be the best at what we do.
• We want to do things that matter
• We seek out interesting and satisfying work that helps makes a difference in society. We use our expertise to provide trusted, impartial professional advice to our customers.
• By making a difference to today, we benefit the world of tomorrow – so we can all go home each day knowing that we’ve done something that really mattered.

Frazer-Nash will never ask for any sort of advance payment as part of the recruiting/hiring process. Candidate profiles are carefully managed to protect personal information.

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