Oklo Inc

Thermal-Hydraulics Engineer (Systems)

LocationSanta Clara, CA
Job TypeFull-time

About This Job

Thanks for your interest in Oklo! We are searching for a Systems 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 Systems Thermal-Hydraulics Engineer will contribute to the development, qualification, and validation of systems-level models of steady-state and transient thermal-hydraulic reactor behavior.


Specific responsibilities may include:

Modeling thermal-hydraulic systems using codes such as SAS4A/SASSYS-1, SAM, or GOTHIC
Developing systems-level analyses to analyze coupled neutronic and thermal-hydraulic behavior at steady-state and during transients
Developing and utilizing analysis methods that efficiently and effectively build confidence in a design
Automation, verification, and validation of modeling and simulation tools in support of analyses
Collaborating cross-functionally to define design requirements, and providing technical feedback to quick-iterating design teams
Document work using modern tools and techniques, and write well-written, thoughtful technical reports


Competencies

We are looking for a Thermal-Hydraulics Engineer that is:

Passionate about clean energy
Passionate about making advanced fission a reality
Willing and able to learn quickly
Skilled with tools such as SAS4A/SASSYS-1, SAM, RELAP, TRACE, GOTHIC, Flomaster, or similar
Experienced with systems-level thermal-hydraulic (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
An excellent writer who can write in modern active voice, so make your cover letter compelling and write it well!
Able to communicate technical content and results verbally


Minimum Qualifications

Bachelors, Masters, or PhD in a technical field, such as nuclear, mechanical, or aerospace engineering
Proficiency with thermal-hydraulics (thermal fluids) analysis methods
Core competencies in heat transfer, fluid dynamics, and thermodynamics first principles
Experience with systems-level thermal fluids analysis codes, such as Flomaster, GOTHIC, or TRACE
Experience with data processing (e.g., pre-processing, post-processing, scripting)
Fluency with Python


Bonus Qualifications

Experience with reactor transient analysis methods
Experience with advanced reactor systems codes such as SAS4A/SASSYS-1, SAM, and RELAP
Experience with qualification and validation of analyses
Experience with nuclear engineering principles and multi-physics analysis methods for engineering applications, particularly as they relate to advanced reactors
Competency with modern software engineering practices and programming languages
Experience with CI/CD computing environments


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.

Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn't about a fake or arbitrary "pieces of flair" mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals.

A team-player: Oklo genuinely is a team. We aren't about taking credit for ourselves, and we aren't about pushing blame to others. We do incredible things because we work as a team.

An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator.

Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day.

Detail-oriented: This focus is a big part of excellence, consistency, and quality. Even excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward.


About Oklo compensation: $73,000-$157,000

Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits.

We are looking to fill this position immediately!

About Oklo Inc.: Oklo Inc. (NYSE: OKLO) is a fast fission clean power technology and nuclear fuel recycling company developing fast fission power plants to provide clean, reliable, and affordable energy at scale. Oklo received a site use permit from the U.S. Department of Energy, was awarded fuel material from Idaho National Laboratory, submitted the first advanced fission custom combined license application to the Nuclear Regulatory Commission, and is developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

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