Thermofluids Engineer / Containment Fault Studies Analyst

Rolls-Royce SMR Limited; Manchester; Hybrid; GBP 42,000 - 55,000; Full time

Benefits offered by this job

Bonus up to 12.5%

Benefits allowance

Pension—12% employer

Holidays—28 days

Private medical insurance

Life assurance

Home office support

Job summary

Rolls‑Royce SMR Limited is seeking a Containment Fault Studies Analyst to model thermal-hydraulic containment systems and their emergency cooling. You will develop analyses to support design optimisation and safety substantiation, producing reports that feed into the safety case.

You will work with design engineers and safety specialists to define requirements, communicate results, and deliver analytical work within approved quality and governance standards.

Qualifications

• Degree qualified in Engineering, Mathematics, Physics, Computer Science or a related discipline.
• Chartered Engineer (or equivalent) desirable.
• Experience in nuclear safety or safety-related analysis is advantageous.

Responsibilities

• Develop and execute thermal-hydraulic containment analyses.
• Model containment performance and emergency cooling system behaviour.
• Assess plant operation during normal conditions, transients and fault scenarios.
• Support substantiation of containment and safety system performance.
• Produce technical reports and safety case contributions.
• Develop and maintain analysis methods, models and tools.
• Support verification, validation and uncertainty quantification activities.
• Develop automated analysis workflows using Python.
• Collaborate with multidisciplinary teams to define analysis requirements.

Skills

Fluid dynamics

Thermal analysis

Python

Analysis reports

Software development basics

Education

Engineering degree

Chartered Engineer (desirable)

Tools

RELAP

FLOMASTER

VIPRE

CTF

GOTHIC

Job description

Role Title: Containment Fault Studies Analyst

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.

About the Team

The Performance & Analysis team is the centre of excellence within Rolls‑Royce SMR for the engineering analysis used to substantiate the performance and safety of the power station. Multiple opportunities are available across thermal hydraulic plant performance and safety analysis, including reactor plant transient and fault analysis, core sub-channel analysis and containment analysis. The team provides the technical evidence needed to support design decisions, safety case development and regulatory compliance across the SMR programme.

About the Role

As a Containment Fault Studies Analyst, you will model the thermal-hydraulic behaviour of containment systems and their associated emergency cooling systems. You will develop engineering models and analyses that demonstrate the effectiveness of containment and safety systems during faulted conditions, using the results to support design optimisation and the substantiation of nuclear safety claims. Analysis outputs form a key part of the safety case and contribute directly to the verification and validation of the SMR design. You will work closely with design engineers, safety specialists, performance analysts and test teams, helping to define analysis requirements and communicate results across a wide range of technical disciplines.

We’ll Need You To

• Develop and execute thermal-hydraulic containment analyses
• Model containment performance and emergency cooling system behaviour
• Assess plant operation during: Normal operating conditions, Operational transients, Reactor fault scenarios
• Support the substantiation of containment and safety system performance
• Produce technical reports and safety case contributions
• Develop and maintain analysis methods, models and tools
• Support code verification, validation and uncertainty quantification activities
• Develop robust and automated analysis workflows using Python and associated tools
• Support benchmarking of analytical methods against experimental data
• Collaborate with multidisciplinary teams to define analysis requirements and communicate findings
• Plan and deliver engineering work to agreed quality, schedule and governance requirements

Key Skills Required

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:

• Fluids & Thermal Analysis Experience applying a structured and methodical approach to engineering analysis
• Strong understanding of fluid dynamics and thermal processes
• Experience using industry-standard thermal hydraulic analysis software
• Experience producing technical analysis reports and supporting safety case documentation
• Experience with tools such as RELAP, FLOMASTER, VIPRE, CTF, GOTHIC or similar would be advantageous
• Development of Analysis Methods & Tools Experience developing fluid and thermal analysis methods and models
• Familiarity with software development processes and quality assurance principles
• Experience developing analysis tools and scripts, ideally using Python
• Understanding of multidisciplinary and coupled analysis approaches
• Quality Assurance & Verification Experience verifying analysis models and software through benchmarking and testing
• Experience validating models against experimental or test data
• Understanding of uncertainty quantification and statistical analysis methods
• Experience supporting development of thermal hydraulic test rigs would be advantageous
• Relevant Domain Knowledge Experience within Nuclear, Power Generation, Aerospace, Oil & Gas or other safety‑critical industries
• Knowledge of complex fluid, process or thermal systems
• Understanding of Pressurised Water Reactor (PWR) technology would be beneficial
• Knowledge of engineering safety principles, including ALARP and E3S considerations
• Project Delivery & Collaboration Experience delivering engineering analysis tasks to time, cost and quality requirements
• Strong technical report writing and communication skills
• Ability to explain complex analytical results clearly
• Experience leading technical tasks or supporting junior engineers
• Strong stakeholder engagement and collaboration skills

Qualifications

• Degree qualified in Engineering, Mathematics, Physics, Computer Science or a related discipline
• Chartered Engineer (or equivalent) desirable

Location

Hybrid working with one of the following as your primary site: Derby, Manchester or Warrington.

Salary and Package

The salary band for this role will be between £42,000 – £55,150 dependent on the skills, values and knowledge you bring. There may be flexibility in exceptional cases.

Benefits

• Bonus – Performance‑related target opportunity up to 12.5%
• Benefits Allowance – £2,200 per annum for a bespoke package
• Pension – 12% employer and 6% employee contributions
• Holidays – 28 days (+ public holidays) with the ability to buy or sell up to 5 days
• Private Medical Insurance – BUPA single cover
• Life Assurance – 6× pensionable pay
• Home Office Support – £250 one‑off payment for new starters

Selection Process

The closing date for this role is 11th October 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

£42,000.00 - £55,125.00

Why Join Us

• 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

We are Rolls‑Royce SMR A career with Rolls‑Royce SMR offers a unique opportunity to contribute to an exciting organisation delivering a transformational mission. Rolls‑Royce SMR is a radically different approach to proven nuclear technology. Each Rolls‑Royce SMR power station will generate 470MW of low‑carbon energy— equivalent to more than 150 onshore wind turbines and enough to power a million homes for over 60 years. With its Rolls‑Royce SMRs will play a vital role in supporting renewable energy by helping to overcome intermittency and ensure a stable, sustainable energy future. We’re proud to be one of the few employers that can genuinely say we’re a strengths‑based organisation. Our people are here because of what makes them exceptional - and our role is to help them make the most meaningful contribution of their careers, doing work they love. We offer opportunities that go beyond traditional career paths. At Rolls‑Royce SMR you can develop your career by exploring roles and challenges that align with your unique talents. Our culture At Rolls‑Royce SMR, we are committed to ensuring that our teams reflect the communities we serve and that everyone can be themselves at work. We know that diverse teams are more innovative and get better results, and that our people can thrive and be more successful in truly inclusive cultures. Join us and help shape our culture. Find out more about our inclusion pledge. Rolls‑Royce SMR is a place where everyone can grow, so whatever background you bring with you, please apply if this is a role that would make you excited to come into work every day and help shape our culture.

What we offer

At Rolls‑Royce SMR, we are committed to ensuring that our teams reflect the communities we serve and that everyone can be themselves at work. We know that diverse teams are more innovative and get better results, and that our people can thrive and be more successful in truly inclusive cultures. Join us and help shape our culture. Find out more about our inclusion pledge. Rolls‑Royce SMR is a place where everyone can grow, so whatever background you bring with you, please apply if this is a role that would make you excited to come into work every day and help shape our culture.