At a Glance
- Tasks: Lead complex thermal-hydraulic analyses and support nuclear safety decisions.
- Company: Join Frazer-Nash, a leader in the UK nuclear sector with over 30 years of experience.
- Benefits: Enjoy competitive salary, flexible working, and comprehensive benefits for your wellbeing.
- Other info: Collaborative environment with opportunities for mentorship and professional growth.
- Why this job: Make a real impact on the future of nuclear engineering while developing your career.
- Qualifications: Degree in Engineering or related field, with experience in nuclear thermal hydraulics.
The predicted salary is between 71000 - 82000 £ per year.
Salary range: £71,000–£82,000 per annum
Location: Manchester or Bristol
Working Pattern: We operate a flexible hybrid working model, with time split between the office, client sites, and home.
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 thermal hydraulics specialists sit at the heart of our work in nuclear safety, design, and assurance. We are seeking an experienced Senior Nuclear Thermal Hydraulics 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 thermal hydraulics specialists work closely with safety, systems, and reactor 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 Senior Nuclear Thermal Hydraulics Consultant, you will apply advanced analytical techniques and modelling tools to understand and explain complex thermal‑hydraulic 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, 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 thermal‑hydraulics capability across existing and emerging nuclear programmes.
Key responsibilities include:
- Developing and maintaining thermal‑hydraulic models of nuclear plant 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
- Communicating complex technical outputs clearly and concisely to clients, regulators, and internal stakeholders
What We’re Looking For:
Technical experience:- Strong understanding of fluid flow, heat transfer, thermal hydraulics, and multiphase flows
- A degree in Engineering, Physics, Applied Mathematics, or a related discipline, or equivalent relevant experience
- Demonstrable experience in nuclear thermal hydraulics supporting nuclear plant design and/or operations (perhaps using codes like RELAP, GOTHIC, CATHARE, TRACE, VIPRE, S5K)
- Experience of transient and fault analysis within nuclear safety contexts
- Ability to interpret, validate, and clearly explain complex modelling outputs
- Ability to independently manage and deliver work to meet client requirements
- Experience contributing to proposal writing, client liaison, 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: Our people are central to our success. We offer a comprehensive benefits package designed to support your wellbeing, development, and work–life balance, including:
- Competitive salary with annual reviews
- 25 days’ holiday, with the option to buy up to five additional days
- Flexible and hybrid working arrangements
- Enhanced parental benefits
- Company pension scheme
- Targeted professional development and career support
- Life assurance and private healthcare membership
- Bonus scheme linked to company performance
- Paid membership fees and support towards professional accreditation
- Cycle to Work scheme and season ticket loan
- A range of flexible benefits, tailored to your personal requirements
Senior Nuclear Thermal Hydraulics Consultant in Bristol employer: Frazer-Nash Consultancy
Frazer-Nash Consultancy is an excellent employer, offering a dynamic work culture that prioritises employee well-being and professional growth. With a flexible hybrid working pattern and opportunities to engage in impactful projects within Defence Land Systems, employees can thrive in a supportive environment that values innovation and collaboration.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Nuclear Thermal Hydraulics Consultant in Bristol
✨Tip Number 1
Network like a pro! Get out there and connect with professionals in the nuclear sector. Attend industry events, join relevant online forums, and don’t be shy to reach out on LinkedIn. You never know who might have the inside scoop on job openings!
✨Tip Number 2
Show off your expertise! Prepare a portfolio showcasing your previous projects and achievements in thermal hydraulics. When you get the chance to chat with potential employers, let your work speak for itself and demonstrate how you can tackle those complex engineering challenges.
✨Tip Number 3
Practice makes perfect! Before any interviews, do some mock sessions with friends or mentors. Focus on articulating your technical knowledge clearly and confidently. Remember, they want to see how you communicate complex ideas, so nail that part!
✨Tip Number 4
Apply through our website! We’re all about making connections, so don’t hesitate to submit your application directly on our site. It shows initiative and gives you a better chance of standing out in the crowd. Let’s get you on board!
We think you need these skills to ace Senior Nuclear Thermal Hydraulics Consultant in Bristol
Some tips for your application 🫡
Tailor Your CV:Make sure your CV reflects the specific skills and experiences that match the Senior Nuclear Thermal Hydraulics Consultant role. Highlight your technical expertise in thermal hydraulics and any relevant projects you've worked on.
Craft a Compelling Cover Letter:Use your cover letter to tell us why you're passionate about nuclear engineering and how your background makes you a great fit for our team. Be sure to mention any experience with industry-standard codes like RELAP or TRACE.
Showcase Your Communication Skills:Since this role involves client engagement, demonstrate your ability to communicate complex technical concepts clearly. Include examples of how you've successfully conveyed technical information in past roles.
Apply Through Our Website:We encourage you to apply directly through our website for the best chance of getting noticed. It’s the easiest way for us to keep track of your application and ensure it reaches the right people!
How to prepare for a job interview at Frazer-Nash Consultancy
✨Know Your Technical Stuff
Make sure you brush up on your knowledge of fluid flow, heat transfer, and thermal hydraulics. Be ready to discuss specific codes like RELAP or TRACE, as well as any relevant experience you've had in nuclear thermal hydraulics. This will show that you're not just familiar with the theory but can apply it practically.
✨Prepare for Scenario Questions
Expect to face questions about fault sequences and transient analysis. Think of examples from your past work where you tackled similar challenges. Being able to articulate how you approached these problems will demonstrate your analytical skills and experience in a nuclear safety context.
✨Communicate Clearly
Since you'll need to explain complex technical outputs to clients and stakeholders, practice summarising your work in simple terms. Use clear examples to illustrate your points, and be prepared to answer follow-up questions. Good communication can set you apart from other candidates.
✨Show Your Collaborative Spirit
Frazer-Nash values teamwork, so be ready to discuss how you've worked with others in previous roles. Highlight any mentoring experiences or collaborative projects. This will show that you can contribute positively to their supportive environment and help guide less experienced engineers.
