We are Rolls‑Royce SMR and we’re doing something that’s never been done before. We’re revolutionising an industry. That’s a once‑in‑a‑career opportunity for those excited by such a challenge. This is more than just a job; this is a legacy.
The Performance & Analysis team is the centre of excellence for engineering analysis used to substantiate the performance and safety of the SMR power station. Within this team, the Severe Accident Analysis group is responsible for analysing low‑probability, high‑consequence accident scenarios under Design Extension Conditions, supporting optimisation of safety‑system design and the substantiation of safety claims.
As a Senior Engineer – Severe Accident Analysis, you will perform detailed technical assessments of severe accident scenarios impacting the reactor core, reactor coolant system and containment. These scenarios may include loss‑of‑coolant events, intact‑circuit faults, bypass and secondary faults, and shutdown conditions leading to core degradation.
Your work will address complex thermal‑hydraulic phenomena, including core material degradation, generation of combustible gases, release and transport of steam and hydrogen, and conditions that could challenge containment and safety systems. The analysis outputs play a critical role in informing safety‑system design decisions and demonstrating robust safety margins within the SMR safety case.
You will take responsibility for progressing analysis tasks in line with programme milestones, applying the RR‑SMR gated review process and ensuring all deliverables meet required quality and governance standards. You will collaborate with a wide range of technical and non‑technical stakeholders and support the continued development of severe‑accident analysis capability within the team.
We know there’s no such thing as the ‘perfect’ candidate. If you meet around 75% of the criteria below, we’d love to hear from you:
We welcome applicants from nuclear and other safety‑critical industries, including defence, aerospace and energy.
Hybrid working with one of the following as your primary site:
Derby, Manchester or Warrington
The salary band for this role will be between £50,650 – £66,500 dependent on the skills, values and knowledge you bring. There may be flexibility with the starting salary in exceptional cases, and the role may develop further over time.
Benefits include:
You’ll be joining a forward‑thinking organisation that values transparency, fairness and innovation. We offer a flexible, inclusive and supportive working environment, opportunities for career growth in a rapidly scaling business, and a culture that values collaboration and continuous learning.
The closing date for this role is 7th June 2026. The process will begin with an introductory call with the Talent Acquisition Partner, with interviews being able to take place straight away.
Pay Range:
£50,600.00-

Why Join Us?
You’ll be joining a forward-thinking organisation that values transparency, fairness, and innovation. We offer:
• A flexible, inclusive, and supportive working environment.
• Opportunities for career growth in a rapidly scaling business.
• A culture that values diversity, innovation, and continuous learning.
We are an equal opportunities employer and welcome applications from all backgrounds. Inclusivity is important to us, and as a Disability Confident organisation, we are committed to fair, supportive, and continually improving recruitment practices that ensure everyone has the opportunity to thrive.
Confidence can sometimes hold us back from applying for a job. But we'll let you in on a secret: there's no such thing as a 'perfect' candidate. If you feel you meet 75% of the requirements for this role, we would love to hear from you.
Also, if you are considering a career move or a sector-jump, please get in touch – we welcome applications from people with transferable skills.
Our Application Process
Due to the safety regulations within the nuclear industry, applicants will be required to participate in additional screening. These are:
• Obtaining Baseline Personnel Security Standard (BPSS) clearance
• Satisfactory completion of a Disclosure and Barring Service (DBS) check
• Satisfactory completion of a basic financial probity check
#LI-CE1 #LI-Hybrid #WeAreSMR #destinationnuclear