Oklo
Core Design Engineer
About this role
Oklo seeks a Core Design Engineer to develop performant and manufacturable reactor cores by balancing neutronic, thermal hydraulic, material, mechanical, and economic factors. The role involves multiphysics simulations, technical documentation, and cross-functional collaboration with fabrication teams.
What you'll do
- Execute multiphysics simulations to assess core performance across neutronic, thermal hydraulic, and material domains
- Translate stakeholder requirements into detailed system functional requirements
- Produce technical documentation and design reports using modern tools
- Perform validation and verification analyses for core requirements
- Collaborate with fabrication engineers to mature designs for manufacturability
- Travel to Santa Clara headquarters 2x per quarter for team meetings and company events
What they're looking for
- Reactor physics and core design (multidisciplinary perspective)
- Neutronic analysis and modeling
- Thermal hydraulic analysis
- Material analysis and selection
- Object-oriented programming (Python or C++)
- Multiphysics simulation tools
- Technical writing and documentation
- First principles engineering analysis
Opens the application — the Jobs AI extension fills it for you. Set up autofill
Opens the official application on the employer’s site. No login required.
Oklo
Oklo develops advanced fission reactor technologies aimed at commercializing clean energy solutions. The company is hiring regulatory engineers, thermal hydraulic test engineers, technical product engineers, systems engineers, and software lifecycle specialists to support reactor design, licensing, testing, and engineering operations.
View all jobs at OkloLikely interview questions
- Describe a complex core design trade-off you've encountered between neutronic performance, thermal hydraulics, and material constraints—how did you approach it?
- Walk us through your experience setting up and executing multiphysics simulations for reactor core analysis.