Oklo

Probabilistic Risk Assessment Engineer

Oklo · Santa Clara, CA or Remote

Posted 13 days ago · $160,000-$210,000

or apply directly on Oklo's site. We never take the application ourselves.

Is this posting real?

This role has been open
13 days
Oklo's roles stay open a median of 45 days
Reposted
No
Salary listed
Yes
97% of Oklo's roles list one
Ghost-job risk at Oklo
high
39 stale, 3 reposted of 72 open
Hiring momentum
100 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Oklo's own greenhouse board since 2026-08-03. Full hiring picture for Oklo.

About this role

The Probabilistic Risk Assessment (PRA) Engineer at Oklo is responsible for conducting probabilistic risk analyses to support the development and operation of fast reactor designs. This role involves collaborating with engineering teams to analyze event sequences, develop risk models, and incorporate risk insights into design improvements, while also supporting licensing activities through technical documentation.

Our read on this posting4.4out of 5
benefits
5/5
freshness
4/5
career value
4/5
role clarity
4/5
pay transparency
5/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Oklo as an employer.

What you need

  • At least 5 years of work experience
  • Bachelor’s degree or higher in nuclear engineering, mechanical engineering, aerospace engineering, or similar
  • Familiarity with PRA techniques
  • Strong problem-solving skills
  • Ability to work effectively in a collaborative team environment
  • Excellent written and verbal communication skills

Nice to have

  • Advanced training/education/experience in PRA
  • Experience delivering products for regulatory review (DOE authorization, NRC licensing under 10 CFR Parts 50 or 52)
  • Experience with PRA software (CAFTA, SAPHIRE, ADAPT, RAVEN, etc.)
  • Experience with fast reactor design and analysis
  • Experience with hazard analysis (FMEAs, HAZOPS, What-if Analysis)

What you get

  • Salary: $160,000-$210,000
  • Flexible time off
  • Equity
  • Bonuses
  • Competitive pay
  • 401(k)

Worth weighing

  • Remote employees must travel to headquarters twice a quarter and be present for the first two weeks of onboarding in person.
  • The role requires a high level of creativity and problem-solving in a fast-paced startup environment, which may not suit everyone.
  • No specific mention of a structured onboarding process beyond the initial two weeks in Santa Clara.

Summarised from Oklo's posting. Read the full original.

Listed by Oklo on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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