Thermofluids Engineer / Containment Fault Studies Analyst

Rolls - Royce SMR

East Midlands

Hybrid

GBP 42,000 - 55,000

Full time

5 days ago

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Benefits offered by this job

Bonus up to 12.5%

Pension 12% employer

Holidays 28 days

Private Medical Insurance

Life Assurance 6× pensionable pay

Home Office Support

Job summary

Rolls-Royce SMR is seeking a Containment Fault Studies Analyst to model thermal-hydraulic containment and emergency cooling systems. You will develop analyses to support safety cases and design substantiation, working with design engineers, safety specialists and test teams to communicate results across disciplines.

The role involves creating robust analysis methods, delivering technical reports, and contributing to validation and benchmarking activities within a hybrid UK-site environment

Qualifications

Degree in Engineering, Mathematics, Physics, Computer Science or related field.
Experience in nuclear, power, aerospace or safety-critical industries.
Strong report writing and communication skills.
Experience in thermal-hydraulic analysis and safety case documentation.
Familiarity with Python for analysis workflows.
Experience with benchmarking and uncertainty quantification.

Responsibilities

Develop and execute thermal-hydraulic containment analyses.
Model containment performance and emergency cooling system behaviour.
Assess plant operation during Normal operating conditions, Transients and Reactor 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.
Collaborate with multidisciplinary teams to define analysis requirements and communicate findings.
Plan and deliver engineering work to agreed quality, schedule and governance requirements.

Skills

Thermal-hydraulic analysis

Python scripting

Uncertainty quantification

Technical report writing

Stakeholder engagement

Education

Engineering degree

Chartered Engineer desirable

Tools

RELAP

VIPRE

GOTHIC

CTF

FLOMASTER

Python

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 include:

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?

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.