Oklo Inc. is developing fast fission power plants to deliver clean, reliable, affordable energy at scale, establishing a domestic supply chain for…. Backed by Y Combinator.
About the role
Serve as Oklo's technical expert for high-temperature piping, pressure vessels, pressure boundaries, and their supporting components within the OFRF. Translate process temperatures, pressures, chemistry, flow conditions, vacuum and inert-gas requirements, operating cycles, and upset conditions into the piping and vessel design basis, applicable codes, load combinations, service life, and acceptance criteria.
What they're looking for
- 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, including responsibility for piping stress, pressure vessel, thermal, or mechanical stress analyses
- 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
More about this role
Thanks for your interest in Oklo! We are searching for a Sr. Mechanical Engineer to join our fuel recycling engineering team within Oklo's Recycling Division.
You will serve as Oklo's technical expert for high-temperature process piping, pressure vessels, and pressure-retaining components supporting the Oak Ridge Fuel Recycling Facility (OFRF). You will own the mechanical design basis, analysis, code compliance, and technical interfaces for these systems from early design through fabrication, testing, installation, commissioning, and operational support. The work includes demanding hot-cell, molten-salt, inert-atmosphere, vacuum, and thermal-cycling service conditions.
This role is for a technically rigorous mechanical engineer who is comfortable working from first principles, developing and reviewing detailed analytical models, and owning mechanical equipment designs from early concepts through fabrication, testing, hot-cell installation, and operation. Success requires strong engineering judgment, hands-on design capability, clear communication, and the ability to balance technical performance, safety, remote maintainability, manufacturability, schedule, and cost in a...
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