or apply directly on Oklo's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 2 days Oklo's roles stay open a median of 64 days
- Reposted
- No
- Salary listed
- Yes 99% of Oklo's roles list one
- Ghost-job risk at Oklo
- high 74 stale, 5 reposted of 105 open
- Hiring momentum
- 131 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-10-24
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
As a Core Design Engineer at Oklo, you will design reactor cores by balancing various engineering considerations, perform multiphysics simulations, and document your findings. You will collaborate with fabrication engineers and cross-functional teams to ensure that designs meet performance requirements while translating stakeholder needs into functional requirements. The role involves a mix of technical analysis, documentation, and teamwork in a fast-paced environment.
- benefits
- 5/5
- freshness
- 5/5
- 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
- Bachelors, Masters, or PhD in nuclear engineering or a related field
- Experience with core design from a multidisciplinary perspective
- Experience with object-oriented programming language (e.g., Python, C++)
- Experience with neutronic analyses
- Experience with thermal hydraulic analysis
- Experience with material analysis
Nice to have
- Familiarity with principles of fast reactor core design
- Experience with fuel cycle optimization
- Familiarity/experience with ternary fuel and ternary fuel cycles
- Experience with CI/CD computing environments
- Experience with Monte Carlo neutronics tools (e.g., SERPENT, MCNP, SCALE, etc.)
What you get
- Salary: $130,000-$190,000
- Flexible time off
- Equity
- Bonuses
- Competitive pay
- 401(k)
Worth weighing
- Remote employees must travel to headquarters in Santa Clara, CA twice a quarter for meetings and events
- First two weeks of onboarding require in-person presence at headquarters
- The role requires a high degree of creativity and problem-solving in a startup environment, which may not suit everyone
Summarised from Oklo's posting. Read the full original.
Listed by Oklo on their greenhouse job board, last confirmed open on 2026-10-24. PitchMeAI is not the employer.
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