Engineer - Thermofluid Analysis

Role Title: Engineer – Thermofluid Analysis
Hybrid working with one of the following locations as your primary site: We are Rolls-Royce SMR and we're doing something that's never been done before. That's a once-in-a-career opportunity for those excited by such a challenge. The Performance & Analysis team is the centre of excellence within Rolls-Royce SMR (RR SMR) for the engineering analysis used to substantiate the performance and safety of the power station. Thermo-fluid analysis is a key tool for supporting the design and development of the RR SMR as we support the design, assessment and substantiation of both duty and safety systems using a 1D fluid systems analysis approach.
Thermo-fluid engineers are responsible for the technical and programme delivery of work packages which develop analysis methods, models and tools to investigate the performance of fluid systems in a range of normal and faulted operating conditions. The role will involve working alongside the design, performance and safety teams to determine suitable analysis requirements and scope of 1D fluid analysis packages to support progressive design, but ultimately verify the performance and safety of the final RR SMR design.
Some of the key responsibilities and scenarios a thermo-fluid engineer would support are:
Scoping of analysis requirements to demonstrate a system meets its performance and safety requirements
Use analysis for sizing key components to achieve system requirements (i.e., Apply knowledge of thermo-fluid behaviour and system design principles to propose design/control modifications to meet system performance/safety requirements
Author analysis reports which summarise key results for system performance including pressure drop, NPSHa, control philosophy, cavitation margin, thermal performance
In some scenarios, a higher fidelity 2D/3D analysis approach may be required and there may be opportunities to support the delivery of Computational Fluid Dynamic (CFD) analysis within the group
The role includes contributing to the development of the wider fluid systems analysis methodology by applying Verification, Validation and Uncertainty Quantification (VVUQ) techniques, thereby demonstrating the adequacy of the analysis they are responsible for. More experienced engineers may also be responsible for the technical supervision of small teams or junior engineers.
Due to the safety-critical nature of the modelling we undertake, excellent quality-management processes and code VVUQ are essential. The development of robust and automated analysis routes around the analysis codes, including clear documentation of model inputs/outputs and any additional pre/post-processing of data is an important aspect of this.
The thermo-fluid analysis group collaborates closely with system design engineers and safety measure owners, which provides opportunities to use analysis not only to substantiate performance, but influence the design and operating philosophies of the systems we analyse to improve their operation.
As we strive to find the best fit for this position, we are seeking individuals with a minimum level of experience, training, and qualification. Strong understanding of applied fluid mechanics and heat transfer principles.
Experience with 1D fluid systems analysis using tools like Flomaster or equivalent techniques (e.g., Familiarity with geometry pre/post-processing tools (Navisworks, NX) and scripting (MATLAB, Python).
Proven ability to develop analysis methods and technical approaches to support design and safety cases.
Experience in reviewing and technically checking thermo-fluid analysis for high-assurance applications.
Skilled in verification and validation of analysis models, including benchmarking and uncertainty quantification.
Track record of delivering analysis tasks to time, cost, and quality, with strong communication and leadership skills.
Typically you will have a degree level qualification an engineering discipline & be recognised through an appropriate professional body, or be working towards achieving this.
We welcome applications for a broad range of industries, with nuclear experience not being essential for this role.
Bonus - Performance related target opportunity 12.5%
~ Benefits Allowance – £2,200 per annum, enabling you to create a bespoke package
~ Pension - 12% employer and 6% employee contributions.
~ Holidays - 28 days holiday (+ public holidays) and the ability to buy or sell up to 4 days.
~ Private Medical Insurance - BUPA single cover health care
~ Life Assurance - 6x pensionable pay
~£250 - One-off payment for new starters for home office purchases

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.
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.
Due to the safety regulations within the nuclear industry, applicants will be required to participate in additional screening. 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