TerraPower
Principal Engineer, Safety Analysis
$152K–$197K
Bellevue, Washington, United States +1 · Principal · Full-time · Posted Oct 27, 2026
- Location
- Bellevue, Washington, United States
Bellevue, WA - Experience
- Minimum 5 years’ experience in the nuclear field; extensive experience in relevant analysis, modeling, BEPU, and/or code development. Experience with other reactor designs, such as LWRs, can be considered when differentiating candidates.
- Education
- B.S., M.S. or Ph.D. in nuclear engineering, or other relevant engineering degree.
- Visa sponsorship
- Applicants who are foreign nationals (other than asylees, refugees, or lawful permanent residents) are evaluated under U.S. Government export control requirements; applicants are asked to identify their U.S. citizenship or immigration status. TerraPower may not consider foreign nationals from countries where timely export approval is impracticable.
About the job
Performs safety and transient analyses for TerraPower’s Natrium Demonstration reactor, developing system models and methods and supporting design, licensing, and documentation.
What you'll do
- Develop models and analyze anticipated operational occurrences, design basis events, and design basis accidents; perform benchmark calculations.
- Support reactor and SSC requirements, integrate licensing-basis event analyses into project design and licensing documentation, and contribute to safety methods and software capabilities.
- Document and review analysis and design deliverables.
What they ask for
- Extensive experience in nuclear transient safety analysis, reactor system modeling, BEPU analysis, and/or computer code development.
- Experience with nuclear safety analysis software and knowledge of thermal-hydraulics, reactor dynamics, and transient phenomena.
- Familiarity with nuclear design, regulatory requirements, and risk-informed performance-based guidance for Non-Light Water Reactors.
- B.S., M.S. or Ph.D. in nuclear engineering or another relevant engineering degree; minimum 5 years’ experience in the nuclear field.
Nice to have
- Familiarity with EMDAP and Regulatory Guide 1.203.
- Strong software engineering skills in Python, Fortran, C++, or another language; SFR safety analysis experience is highly desirable.
Pay
$151,994.00 - $197,395.00 USD base salary
Tools
RELAP5, TRACE, TRAC, SAS4A/SASSYS-1, GOTHIC, MELCOR, SAM, Python
Model-written summary · the original posting is authoritative