Thermal-Hydraulics Engineer

Summary

Join Oklo's team as a Systems Thermal-Hydraulics Engineer, responsible for analyzing fluid flow and heat transfer within reactors. You will contribute to developing, qualifying, and validating systems-level models of reactor behavior. Specific duties include modeling thermal-hydraulic systems using various codes, developing systems-level analyses, and automating verification and validation of tools. Collaboration with design teams and clear documentation are crucial. The ideal candidate possesses a passion for clean energy, strong technical skills, and excellent communication abilities. Oklo offers a fast-paced, highly iterative environment with opportunities for growth and development.

Requirements

• Bachelor's, Master's, or PhD in a technical field, such as nuclear, mechanical, or aerospace engineering
• Proficiency with thermal-hydraulics (thermal fluids) analysis methods
• Core competencies in heat transfer, fluid dynamics, and thermodynamics first principles
• Experience with systems-level thermal fluids analysis codes, such as Flomaster, GOTHIC, or TRACE
• Experience with data processing (e.g., pre-processing, post-processing, scripting)
• Fluency with Python

Responsibilities

• Model thermal-hydraulic systems using codes such as SAS4A/SASSYS-1, SAM, or GOTHIC
• Develop systems-level analyses to analyze coupled neutronic and thermal-hydraulic behavior at steady-state and during transients
• Develop and utilize analysis methods that efficiently and effectively build confidence in a design
• Automate, verify, and validate modeling and simulation tools in support of analyses
• Collaborate cross-functionally to define design requirements, and provide technical feedback to quick-iterating design teams
• Document work using modern tools and techniques, and write well-written, thoughtful technical reports

Preferred Qualifications

• Experience with reactor transient analysis methods
• Experience with advanced reactor systems codes such as SAS4A/SASSYS-1, SAM, and RELAP
• Experience with qualification and validation of analyses
• Experience with nuclear engineering principles and multi-physics analysis methods for engineering applications, particularly as they relate to advanced reactors
• Competency with modern software engineering practices and programming languages
• Experience with CI/CD computing environments

Benefits

• Flexible time off
• Equity
• Competitive pay
• 401k
• Health insurance
• FSA
• Flexible work hours