Senior Thermal-Hydraulics Engineer, Core Analysis

TerraPower; Bellevue (WA); On-site; USD 132,000 - 171,000; Full time

Benefits offered by this job

Competitive compensation

Relocation assistance

401k Plan

PTO 21 days annually

Job summary

TerraPower is seeking a Senior Engineer to lead core thermal hydraulics analyses and method development in Bellevue, WA. You will apply steady-state and transient analyses, validate codes, and integrate with multidisciplinary teams to solve reactor core design challenges and support testing programs.

The role requires experience with reactor core subchannel analysis, and proficiency in Python or C++. Collaboration, rigorous documentation, and clear communication are essential for success in this

Qualifications

• 6+ years related experience with a Bachelor's degree or 3+ years with a Master's degree.
• Proficiency in Python or C++.
• Experience with nuclear systems/subchannel analysis codes (RELAP, SASSYS, GOTHIC, VIPRE-01).
• Ability to work in a multi-disciplinary engineering team.
• Experience with core subchannel analysis and high-temp thermal-fluid systems.

Responsibilities

• Develop and apply thermal-hydraulic analysis methods for reactor core designs.
• Perform code benchmarking, validation, and first-principles calculations.
• Collaborate across disciplines to address core design challenges and testing programs.
• Produce technical reports and present analyses to the team.

Skills

Python or C++

Nuclear codes

Team collaboration

Subchannel analysis

Low Prandtl heat transfer

High-temperature fluids

Multitasking

Writing & communication

Integrity & trust

Analytical problem solving

Education

Bachelor's degree

Master's degree

Tools

RELAP

SASSYS

GOTHIC

VIPRE-01

Job description

TerraPower is seeking a Senior Engineer to lead core thermal hydraulics analyses and method development in Bellevue, WA. You will apply steady-state and transient analyses, validate codes, and integrate with multidisciplinary teams to solve reactor core design challenges and support testing programs.

The role requires experience with reactor core subchannel analysis, and proficiency in Python or C++. Collaboration, rigorous documentation, and clear communication are essential for success in this