We are excited to announce an open call for talented interns to join Oklo's dynamic team! Below are multiple positions across various disciplines that may be available, offering the chance to work on innovative projects for Summer 2027. If you're passionate about solving complex challenges, thrive in a collaborative environment, and are eager to contribute to groundbreaking solutions, we encourage you to apply.

Requirements

Oklo interns are required to:

Relocate or be available to work out of Santa Clara CA where Oklo Headquarters is located for the duration of the internship or out of one of our satellite locations in Denver, CO, Brooklyn, NY, Idaho Falls, ID, or Washington D.C.
Be available to work 30-40 hours per week between June 7, 2027 - August 20, 2027 (depending on the scope of work)
Be currently enrolled or recently (2027) graduated with a Bachelor's or Master's Degree from an accredited university

Intern Position Descriptions

Thermal Hydraulics Intern

The TH Intern will develop intermediate fidelity (IF) subchannel and high-fidelity computational fluid dynamics (CFD) models for applications in sodium fast reactors (SFRs). The project will involve comparisons between simulation results and experimental data. The exact topic will depend on interest and company needs but could cover fluid-structure interaction, turbulence model development, uncertainty quantification, or surrogate modeling.

Required Qualifications

Coursework in fluid mechanics and heat transfer
General reactor physics and systems analysis
Statistical methods and uncertainty quantification
Experience with 3-D CFD and meshing workflows
Proficiency in Python

Bonus Qualifications

Experience with advanced 3-D CFD concepts (large eddy simulation, fluid-structure interaction)
Familiarity with high-performance computing workflows and tools
Experience with MOOSE framework (SAS, RELAP, MOOSE subchannel)
Experience with legacy codes in FORTRAN or similar
Familiarity with statistics and reduced order modeling

Materials Intern

Working with members of Oklo’s Materials Team, will help with the selection and qualification of materials for use in nuclear reactor systems. Typical work duties include computational model development and implementation, engineering analysis, documentation, and interfacing with our fuel fabrication and engineering teams.

Key Responsibilities
Analyzing material performance across expected operating conditions
Developing new analysis methods to predict material behavior in service
Performing engineering analyses, including assessments of thermal performance, mechanical performance, safety performance, manufacturability, and cost.
Collaborating cross-functionally to provide technical feedback to quick-iterating computational teams.
Authoring technical reports using modern documentation tools and techniques
Required Qualifications
Experience working with and developing material behavior models
Experience with material characterization (material testing, metallography)
Background in nuclear, chemical, materials engineering, or equivalent
Motivated learner who is adept at efficiently summarizing literature
Bonus Qualifications
Experience with engineering simulation software, such as ANSYS or COMSOL
Coding or data analysis experience (e.g., Python or similar tools)

Mechanical Analyst Intern

This intern will contribute to the evaluation and optimization of mechanical components that are critical to Oklo’s advanced power plant designs. This position offers hands-on experience in applying engineering fundamentals, performing structural analysis, and integrating results into design iterations.

Key Responsibilities
Apply first-principles mechanics and strength of materials to support analysis of structural components
Assist in summarizing mechanical analysis results for design teams, highlighting key findings such as peak stresses, margins of safety, and potential design revisions
Support the development of technical documentation, ensuring clear and concise communication of assumptions, methods, and results