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Oklo100% Remote

Senior Neutronics Engineer - Isotope Production

Employment

Full-time

Remote Scope

US

Date Posted

Oct 22, 2026

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About the Role

Thanks for your interest in Oklo ! We are searching for aSenior Neutronics Engineerto join our engineering team. Position Description The Senior Neutronics Engineer is responsible for developing and executing neutronics analyses supporting the design, optimization, operation, and safety evaluation of an isotope production reactor. The engineer will perform analyses to support core design, fuel cycle, target performance, shielding, and sensitivity/uncertainty quantification across the reactor lifecycle and isotope production facility. This role requires close collaboration with thermal hydraulics, mechanical design, materials, isotope processing, operations, safety, and licensing teams. The engineer will translate system and production objectives into analysis requirements; develop appropriate computational models and methods; and produce technically sound, traceable, and defensible results. Areas of analysis include criticality, depletion, isotope production, target optimization, shielding, activation, source term, and sensitivity/uncertainty analysis. The isotope division is a small but growing team so the candidate must be capable of operating in a highly iterative and independent environment. Specific responsibilities may include: Perform reactor core design and optimization using Monte Carlo and, where appropriate, deterministic neutron transport methods. Develop and execute models using codes such as MCNP, Serpent, and SCALE Perform core lifecycle and fuel management ana

Required Skills & Technologies

Neutronics-EngineeringNuclear-EngineeringReactor-Design-EngineeringIsotope-Production-EngineeringSenior-Neutronics-EngineerSenior-Nuclear-EngineerSenior-Nuclear-EngineeringReactor-Physics-EngineerNuclear-Engineering-Jobs
Link verified: 10/23/2026Explore more Senior & Staff jobs →

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