Thanks for your interest in Oklo! We are searching for a Computational Fluid Dynamics Engineer to join our team. We are looking to fill this position immediately!

Position Description

The CFD Engineer is responsible for conducting high-fidelity thermal-fluid analyses as part of our Reactor Analysis team.

Specific responsibilities may include:

• Developing and conducting high-fidelity analyses using computational fluid dynamics (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 systems
• 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

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. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward.

Minimum Qualifications:

• Bachelor's, Master's, or Ph.D. in Nuclear Engineering, Mechanical Engineering, or a related field with a strong focus on thermal hydraulics
• Core competencies in heat transfer, fluid dynamics, and thermodynamics first principles
• Experience specializing in CFD analysis codes, such as ANSYS Fluent, STAR-CCM+, OpenFOAM, Nek-5000, or similar
• Strong problem-solving skills and the ability to work effectively in a collaborative team environment
• Excellent written and verbal communication skills

Bonus Qualifications:

• Experience with data processing (e.g., pre-processing, post-processing, scripting) is highly recommended
• Proven experience in thermal-hydraulics analysis for nuclear reactor systems
• Fluency with Python
• Competency with modern software engineering practices and programming languages
• Experience with thermal-hydraulic engineering principles and multi-physics analysis methods for engineering applications, particularly as they relate to power systems
• Experience with reactor transient analysis methods
• Advanced skill with systems or reactor safety codes such as GOTHIC, RELAP, TRACE, SAM, or SAS4A/SASSYS-1

About Oklo compensation:

Salary: $73,000-$157,000

Salary may fall outside of the range provided and will be dependent on applicant experience.

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

About Oklo Inc.: Oklo is a California-based company developing clean energy plants to provide emission-free, reliable, and affordable energy using advanced fission. Oklo is a fast-growing startup with a history of reliable funding and milestones for more than 5 years. Oklo’s first product is a microgrid scale powerhouse. The powerhouse can produce clean energy for decades without needing to refuel, and also has the capability to turn nuclear waste into clean energy.

Oklo received a Site Use Permit from the U.S Department of Energy, demonstrated fabrication of its fuel, was awarded fuel from the Idaho National Laboratory, and submitted the first accepted advanced fission license application to the regulator.

Oklo has been featured in Popular Mechanics, Wired, Architectural Digest, Hyperallergic, POWER Magazine, has been the subject of a Harvard Business School case, and was featured in the documentary The New Fire, among many other features.