nuclearhustle

Neutronics Analysis Engineer

Oklo·Santa Clara, CA or remote·Posted today
Nuclear industryUS only

About this role

Oklo is seeking a Neutronics Analysis Engineer to define, develop, and execute in-core and ex-core neutronics analyses supporting fast reactor design, performance evaluation, and safety assurance. You'll work with the engineering team on criticality, depletion, activation, and shielding analyses using Monte Carlo and deterministic codes.

Responsibilities

  • Perform core design and fuel cycle analysis using Monte Carlo and deterministic codes on Oklo fast reactors
  • Conduct calculations and analyses in Monte Carlo-based codes such as Serpent, MCNP, SCALE, and OpenMC
  • Perform calculations and analyses with fast reactor deterministic codes such as DIF3D and PERSENT
  • Support qualification and verification of neutronic analyses, including validation against experiments and benchmarks
  • Stay current with fast reactor core design and analysis work being performed internationally, including benchmark calculations and experiments
  • Provide technical feedback to quick-iterating design teams
  • Document work using modern tools and techniques, and write clear, well-reasoned technical reports
  • Support licensing and regulatory interactions by providing technically sound and defensible neutronics analyses

Qualifications

  • Bachelor's, Master's, or PhD in a technical field such as nuclear engineering with experience in reactor design and analysis
  • Fluency with Python
  • Experience with modern object-oriented languages, preferably C++
  • Proficiency with high-performance computing systems

Desired

  • Experience with fast reactor design and analysis
  • Proficiency with MCNP and SERPENT
  • Proficiency with ORNL's SCALE code system (TRITON, KENO, SAMPLER, etc.)
  • Proficiency with Argonne's ARC codes (MC2, DIF3D, etc.)
  • Master's or PhD degree

Location

Remote with required travel to Santa Clara, CA headquarters twice per quarter; first two weeks of onboarding in-person at headquarters.

Job details

FieldEngineering
LocationSanta Clara, CA or remote
IndustryNuclear energy
PostedJun 2026

About the company

Oklo

An advanced fission company developing the Aurora powerhouse, a fast-reactor microreactor designed to deliver clean baseload power.

Careers page ↗

Don't miss similar roles

Get notified when new engineering jobs are posted.

Create free alert →

Neutronics Analysis Engineer

Oklo

Apply →