Radiant
Senior Thermal Modeling Analyst
$140K–$225K
El Segundo, CA · On-site · Senior · Full-time · Posted Aug 7, 2026
- Experience
- 5+ years of relevant industry experience and 5+ years of experience with a commercial CFD code.
- Education
- Bachelor’s degree in engineering, physics, or similar field from an accredited institution.
- Visa sponsorship
- Job offer is contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.
About the job
Designs and runs thermal CFD and FEA simulations for the Kaleidos microreactor to evaluate performance, reliability, and safety and support reactor-system design decisions.
What you'll do
- Execute thermal CFD analyses and model turbulent flow, heat transfer, and multiphysics interactions.
- Establish CFD best practices and build automated workflows to improve simulation capability, accuracy, and efficiency.
- Collaborate across disciplines on design and reduced-order analysis methods.
What they ask for
- Bachelor’s degree in engineering, physics, or a similar field from an accredited institution.
- 5+ years of relevant industry experience.
- 5+ years of experience with STAR-CCM+, Ansys Fluent, or another commercial CFD code.
- Proficiency with CAD software (Siemens NX) and mastery of finite element and computational fluid dynamics modeling principles and methods.
Nice to have
- Experience with radiation heat transport modeling.
- Knowledge of nuclear reactor design.
Pay
$139.5K – $224.7K USD total compensation
Tools
STAR-CCM+, Ansys Fluent, Siemens NX
Model-written summary · the original posting is authoritative