The role
What you'll do
- Developing and conducting high-fidelity analyses using CFD to analyze thermal-hydraulic behavior through the reactor core, reactor vessel, heat exchangers, power conversion, and balance of plant systems
- Proactively designing, modeling, and analyzing thermal hydraulic systemsDeveloping and utilizing analysis methods that efficiently and effectively build confidence in a design
- Performing engineering analyses, which can include thermal, fluid, safety, manufacturability, and cost
- Collaborating cross-functionally to define design requirements, and providing technical feedback to quick-iterating design teams
- Documenting work using modern tools and techniques, and writing well-written, thoughtful technical reports
- Providing technical feedback to quick-iterating design teams
- Minimum Qualifications
The bar
What you'll bring
- Bachelors, Masters, or PhD in a technical field, such as nuclear, mechanical, or aerospace engineering
- Proficiency with STAR-CCM+, ANSYS Fluent, OpenFOAM, Nek-5000, or equivalent
- Core competencies in heat transfer, fluid dynamics, and thermodynamics first principles
- Experience with data processing (e.g., pre-processing, post-processing, scripting)
- Bonus Qualifications
- Experience with thermal hydraulic engineering principles and multi-physics analysis methods for engineering applications, particularly as they relate to power systems
- Experience with nuclear engineering principles and multi-physics analysis methods for engineering applications, particularly as they relate to advanced reactors
- Experience with analysis of heat exchangers, turbomachinery, and fluid control systems
- Competency with modern software engineering practices and programming languages
- Fluency with Python
- Experience with reactor transient analysis methods
- Experience with systems or reactor safety codes such as GOTHIC, RELAP, TRACE, SAM, or SAS4A/SASSYS-1
- Competencies:
- We are looking for a CFD Thermal-Hydraulics Engineer that is:
- Passionate about clean energy
- Passionate about making advanced fission a reality
- Willing and able to learn quickly
- Skilled with CFD tools such as STAR CCM+, Fluent, or similar
- Experienced with thermal fluids analysis
- Eager to work on a dynamic team, receive constructive feedback, and grow with us
- Comfortable in a fast-paced, highly iterative environment
- Excited to think creatively, critically, and reflectively about the problems they are solving, while not leaning only on what has been done before
- Excellent communicator of technical content both verbally and in writing
- Who you are:
- A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that.
Additional notes
Other
Thanks for your interest in Oklo! We are searching for a Computational Fluid Dynamics (CFD) Thermal-Hydraulics Engineer to join our team.
Position Description
Thermal-Hydraulics Engineers at Oklo are responsible for analyzing fluid flow and heat transfer within a reactor and associated systems. This work includes engineering analyses of thermal-fluid dynamics, clear and thorough documentation of the analyses, as well as interfacing with design teams. A CFD Thermal-Hydraulics Engineer will be responsible for conducting high-fidelity thermal fluid simulations using commercial CFD tools.
Specific responsibilities may include:
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