Senior Engineer – CFD Analysis
packages across the power station, acting as both a technical author and reviewer for CFD analysis. The role will involve working alongside the design, performance and safety teams to determine suitable analysis requirements and scope of CFD analysis packages to support progressive design, but ultimately verify the performance and safety of the final RR SMR design. The role includes contributing to the development of the wider CFD analysis methodology by applying Verification, Validation and Uncertainty Quantification (VVUQ) techniques, thereby demonstrating the adequacy of the CFD analysis they are responsible for. Senior Engineers may also be responsible for the technical supervision of small teams or junior engineers, which may include collaborating and/or managing CFD analysis delivered by our supply chain partners.
Key Responsibilities
* Perform CFD analysis to estimate pressure drop and flow distribution, including the effects of unsteady flow, turbulent mixing and conjugate heat transfer.
* Conduct 1D hydraulic systems analysis to demonstrate system performance / requirements, including system pressure drops, pump sizing and operating philosophy.
* Analyse complex transient phenomena such as flow‑induced vibration or compressible flow effects.
* Model external airflow and discharges to atmosphere, such as cooling tower recirculation or Gaussian plumes.
* Investigate heat and mass transfer mechanisms such as steam sparging and condenser/evaporator heat exchangers.
* Apply robust quality‑management processes and code VVUQ as a safety‑critical activity.
* Develop and automate analysis routes around the analysis codes, including clear documentation of pre/post‑processing scripts (in MATLAB/Python) and the use of high‑performance computing resources.
* Collaborate closely with the in‑house test capability team that builds large‑scale multi‑megawatt test rigs to validate performance analysis tools.
* Seek opportunities to benchmark CFD codes against test data and support the design and execution of test campaigns.
Key Selection Criteria
* Proven ability to apply structured, high‑assurance thermo‑fluid analysis in safety‑critical environments.
* Strong technical expertise in fluid mechanics and heat transfer principles.
* Hands‑on experience with CFD tools such as Ansys Fluent/CFX and Star‑CCM+.
* Experience in reviewing, verifying, and validating CFD models against experimental data.
* Ability to develop and deliver analysis methods, models, and tools to support design and safety cases.
* Track record of technically leading complex analysis projects and collaborating with multidisciplinary teams.
* Typically a degree‑level qualification in an engineering discipline, recognised through an appropriate professional body, or a strong candidate working towards achieving this.
* We welcome applications from a broad range of industries; nuclear experience is not essential for this role.
Salary and Benefits
We anticipate paying a salary of between £48,000‑£63,000 DOE. 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 additional days.
Location and Working Arrangement
Hybrid working with one of the following locations as your primary site: Derby, Manchester or Warrington.
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