TerraPower · 2 months ago
Probabilistic Risk Assessment Engineer
Bellevue, Washington, United States
Full-time
Hybrid
Senior Level, Lead/Staff
$139K/yr - $208K/yr
10+ years expTerraPower is a nuclear energy technology company based in Bellevue, Washington, focused on developing sustainable energy solutions. They are seeking a Probabilistic Risk Assessment Engineer to support the Natrium Sodium-cooled Fast Reactor Program, responsible for performing PRA and severe accident analysis to ensure the safety and reliability of the reactor design.
Clean EnergyCleanTechEnergyNuclear
No H1B
U.S. Citizen Only
Responsibilities
Contribute to the PRA work performed inside and outside of TerraPower in coordination with plant design, transient and consequence safety analysis, and other disciplines
Ensure that the PRA is appropriate and used for the reactor design and within regulatory requirements, guidance, and standards such as risk-informed performance-based technology guidance for Non-Light Water Reactors (NEI 18-04) and ASME/ANS Non-Light Water PRA standard
Participate in the development of planning and scheduling for PRA related activities
Provide technical guidance to engineers and managers on reliability and various PRA-related topics
Participate in PRA peer reviews
Work on the development of event and fault trees, in-vessel radiological transport models, containment transport models, and mechanistic radiological release categories for PRA models
Work with an interdisciplinary team of engineers to establish core and reactor SSC functional, reliability, performance, safety, and quality requirements as well as support the overall design
Establish and maintain documentation of model development and analysis results
Perform engineering reviews of analyses and other engineering design media
Develop fault trees and event trees to reflect most up to date design using CAFTA
Group similar source terms for assignment to event sequence end states
Perform risk integration using the PRA model to report risk metrics and importance measures
Perform focused PRA analysis to support trade studies
Perform hand calculations using first principles to assess and validate more complex models for system performance, containment performance, and radiological consequences
Prepare topical reports describing PRA methods and analytical results for customers and regulators
Deliver presentations for internal management and external customers and regulators
Qualification
Required
M.S. or Ph.D. in nuclear engineering, or other relevant engineering fields, with at least 10+ years of experience in PRA in the nuclear industry
Experience directly interacting with the US NRC on PRA and LMP applications is required
Knowledge of PRA principles and the ASME/ANS Non-Light Water PRA standard is required
Familiarity with nuclear design, regulatory requirements, and risk-informed performance-based technology guidance for Non-Light Water Reactors under Regulatory Guide (RG) 1.233 is required
Knowledge of PRA fundamentals in data, human reliability, accident analysis, severe accidents, and source terms assessments is required
Experience in working in multi-disciplinary engineering teams to address engineering challenges is required
A broad understanding of the various engineering disciplines and how they interrelate in the design of a Nuclear Power Plant is required
High degree of trust, integrity, open communication, respect for others, and teamwork
Preferred
Knowledge and experience on External Events PRA are preferred
Significant experience with PRA software CAFTA, FRANX, HRA Calculator is preferred. Experience on other PRA software such as SAPHIRE, Risk Spectrum, or other similar software is still considered valuable
Understanding of Appendix B to 10 CFR 50 and ASME NQA-1 requirements associated with analysis and software management, as well as experience working under a quality assurance program is preferred
Experience with sodium cooled fast reactors is preferred
Benefits
Competitive Compensation
Salary, eligible to participate in discretionary short-term incentive payments
Comprehensive Medical and Wellness Benefits
Medical
Vision
Dental
Life
Life and Disability
Gender Affirmation Benefits
Parental Leave
401k Plan
Generous Paid Time Off (PTO)
21 days of annually accrued PTO
Generous Holiday Schedule
10 paid holidays
Relocation Assistance
Professional and Educational Support Opportunities
Flexible Work Schedule
Company
TerraPower
TerraPower is a nuclear energy technology firm that focuses on developing a sustainable and economic nuclear energy system.
501-1000 employees
Funding
Current Stage
Late StageTotal Funding
$1.49BKey Investors
US Department of Energy
2025-06-18Series Unknown· $650M
2022-08-15Series A· $830M
2022-03-10Grant· $8.55M
Leadership Team
Vanessa Estupinan, MS-HRM
Human Resources Business Partner
Recent News
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