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
The Senior Mechanical Engineer at Oklo will act as the technical expert for high-temperature process piping and pressure vessels within the Fuel Recycling Division. Responsibilities include designing and analyzing mechanical systems, ensuring code compliance, and overseeing the entire lifecycle from design to operational support. The role demands strong engineering judgment and collaboration across various disciplines to ensure safe and efficient operation in challenging environments.
- benefits
- 5/5
- freshness
- 5/5
- career value
- 4/5
- role clarity
- 5/5
- 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
- Bachelor's degree in Mechanical Engineering or a related engineering discipline
- 10+ years of mechanical engineering experience with process piping, pressure vessels, or high-temperature systems
- Working knowledge of applicable ASME codes and standards, including ASME B31.3 and ASME Boiler and Pressure Vessel Code Section VIII
- Strong understanding of thermal expansion, fatigue, creep, buckling, nozzle loads, pipe supports, pressure boundaries, and elevated-temperature material behavior
- Experience developing and reviewing calculations, specifications, data sheets, drawings, and fabrication-ready design packages
- Experience with materials selection, welding, fabrication, nondestructive examination, pressure testing, and inspection of piping or vessels
Nice to have
- Master's degree or Ph.D. in Mechanical Engineering or a related technical discipline
- Professional Engineer registration or the ability to obtain Tennessee licensure
- Experience with molten-salt, inert-gas, vacuum, nuclear hot-cell, or fuel-cycle systems and with elevated-temperature or corrosion-resistant alloys
- Experience with ASME Section VIII Division 2, design-by-analysis, fatigue, buckling, creep, seismic qualification, or coupled thermal-mechanical analysis
- Experience with analysis tools such as CAESAR II, AutoPIPE, ANSYS, Abaqus, COMPRESS, PV Elite, Mathcad, or similar software
What you get
- Salary: $175,000-$210,000
- Flexible time off
- Equity
- Bonuses
- Competitive pay
- 401(k)
Worth weighing
- Strong preference for candidates located in the Oak Ridge, Tennessee area
- Remote employees must travel to headquarters in Santa Clara, CA twice a quarter and for the first two weeks of onboarding
- Employment may be contingent upon successful completion of a drug screening and employees may be subject to drug testing at any time
- No mention of specific projects or technologies that would enhance marketable skills
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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