Reactor and Systems Performance Consultant

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 several years' experience of fission 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 fission 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 fission 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 regulato