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Oklo via Greenhouse

Fuel Performance Engineer

Location not stated $120k–165k/yr Level not stated
still open verified 3h ago posted 1389d ago seen just now

Posted 1,389 days ago, which is unusual. The employer's own board was still carrying it when we last read it, just now.

Apply at job-boards.greenhouse.io

This is the employer's own posting, not a copy on a job board.

What we know

Is it still open?

Confirmed still open

Last checked 3h ago — checked against the employer's own applicant tracking system, which is the company answering directly.

We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.

Check this listing's status as JSON

How old is it?

Posted 1389d ago

The date the source published, not the day we noticed it (2022-12-12). Last seen at its source just now.

We have tracked this listing since 22 Sep 2026 (9 days). The employer's own board has carried it every time we have read it, most recently just now.

Is it remote?

Santa Clara, CA or Remote

That is the location the employer filed this posting under. Quoted as written — we do not re-word the source's own location.

Who may apply?

Not stated

The description states no restriction of its own. This is the source's own tag.

Pay

$120k–165k/yr

Read out of the job description by us, not from a structured field. Shown in the posting's own currency and period; we never convert.

Skills named in the ad

C++OnboardingPythonSupply Chain

Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.

Carried by 1 source

The listing

Thanks for your interest in Oklo!  We are searching for a Fuel Performance Engineer to join our team. 

Position Description

Fuel Performance Engineers at Oklo are responsible for the fuel performance analyses and verification of current and future fuel design for Oklo's Aurora powerhouses. This includes engineering analyses, modeling and simulation, clear and thorough documentation of the analyses, as well as interfacing with our reactor design, fuel fabrication, and licensing teams.

Specific responsibilities may include:

  • Analyzing current and novel fuel design performance across expected operating conditions and postulated off-normal conditions.
  • Devising analysis methodologies that efficiently and effectively build confidence in a design, which can include software development of modeling and simulation tools.
  • Verification and validation of modeling and simulation tools in support of analyses.
  • Supporting experimental fuel campaigns.
  • Collaborating cross-functionally to provide technical feedback to design teams.
  • Documenting work using modern tools and techniques, and writing well-written, thoughtful technical reports.

Competencies

We are looking for a Fuel Performance Engineer that is:

  • Passionate about clean energy and making advanced fission a reality
  • Willing and able to learn quickly and adapt to evolving challenges
  • Eager to work in a dynamic team, receive constructive feedback, and grow with us
  • Comfortable in a fast-paced, highly iterative startup environment where we think differently and do things in new ways
  • Excited to think creatively, critically, and reflectively about the problems they are solving 
  • Willing to propose novel and creative solutions to technical problems

Minimum Qualifications

  • Bachelor's degree in engineering, plus 3 years of experience
  • Experience with multi-physics system performance analyses
  • Experience with finite element simulation software (e.g., Ansys, Abaqus)
  • Experience with material analysis
  • Experience with object-oriented programming language (e.g., Python, C++)

Bonus Qualifications

  • Experience with nuclear fuel performance analysis
  • Familiarity with metallic fuels
  • Experience with fuel analysis and fuel performance software (e.g., BISON, LIFE-METAL, etc.)
  • Experience in material selection and material analysis
  • Fluency in Python

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.

 

About Oklo travel requirements:

Oklo requires remote employees to travel to headquarters (Santa Clara, CA) twice a quarter annually, based on business or team needs, including attendance at team meetings, off-sites, and other company events or gatherings. For the first two weeks of onboarding, employees are required to be in person at headquarters in Santa Clara, CA.

 

About Oklo compensation:

Salary: $120,000-$165,000

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.

We are looking to fill this position immediately!


About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

#CHOP: Oklo’s Values
Collaboration: We go further, together. We bring diverse perspectives, listen actively, and build trust through transparency and respect. We work across disciplines, sharing ownership to turn complex challenges into shared successes.
Humility: We are team players who act for the good of the company and for the world. We are focused on our mission, not personal recognition.
Ownership: We take pride in what we do and how we do it. We are proactive in finding solutions and see tasks through  to completion. We are committed to delivering on our promises to provide clean, reliable, and affordable energy.
Pathfinding: We chart new ground where no path exists by approaching challenges with curiosity, courage, and creativity while navigating ambiguity.

Candidates should be aware that employment may be contingent upon successful completion of a drug screening, and employees may be subject to drug testing at any time in accordance with company policy and applicable laws.

Recruitment Fraud Disclaimer

Oklo is aware of recent recruitment fraud attempts targeting job seekers. Please be cautious of anyone claiming to represent Oklo who does not contact you from an official Oklo email address.

All legitimate communications from our recruiting team— including application updates, interview requests, and job offers — will come exclusively from an @oklo.com email. Oklo will never ask for sensitive personal information, payments, or account credentials during the hiring process.

If you receive suspicious outreach or have concerns about the authenticity of any communication claiming to be from Oklo, please contact us through the official channels listed on our website.

Apply at job-boards.greenhouse.io