Staff CFD Analysis Engineer
Core
Senior CFD Analysis Engineer leading high-fidelity computational fluid dynamics and thermal-hydraulic simulations for advanced reactor internals and balance-of-plant systems to support safety, performance, and licensing.
Role type
Senior IC CFD Analysis Engineer (Nuclear Thermal-Hydraulics)
Builds
High-fidelity CFD models, verification and validation (V&V) documentation, and analysis reports for reactor thermal-hydraulics.
Domain
Nuclear energy / Advanced reactor thermal-hydraulics
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Ansys Fluent, meshing strategy, turbulence modeling (RANS, LES/DES), conjugate heat transfer, ASME V&V 20, GCI studies, NQA-1 / 10 CFR 50 Appendix B compliance, reactor thermal-hydraulics, multiphase transport, scripting/automation (Python, UDFs), HPC workflows, mentoring
Preferred skills
Master's degree in Mechanical/Aerospace/Nuclear Engineering, natural circulation analysis, passive cooling, helium/molten salt/liquid metal coolant behavior, coupling CFD with systems codes (Flownex) and structural FEA, advanced-reactor domain knowledge (HTGR, SFR, MSR, micro-reactors)
Technologies
Ansys Fluent, Flownex, FEA, Python, HPC
Responsibilities
Plan and perform high-fidelity CFD and conjugate-heat-transfer analyses; Establish and document verification and validation basis per ASME V&V 20; Provide and receive boundary conditions across thermal-fluid, neutronics, and FEA streams; Lead technical problem definition, independent review, and produce analysis reports satisfying NQA-1 / 10 CFR 50 Appendix B; Interface with thermal-fluid, structural, and neutronics teams to build coupled multiphysics workflows; Lead technical reviews, set CFD modeling standards, and mentor junior analysts; Develop and standardize CFD methods, templates, and best practices.
Seniority
Senior, hands-on IC with mentorship responsibilities
