System Transients Analysis Engineer
TerraPowerBellevue, Washington
Full Time
Posted July 21, 2026
$154k - $205k
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Application opens on company website
Listing evidence and provenance
- Source
- greenhouse View original listing
- Freshness
- Open in the current public read path; this is not an employer guarantee.Last observed September 29, 2026
- Classification
- Modern power-system classification not yet published for this listing.Legacy source industry field: Nuclear Energy
- Pay provenance
- Employer-provided pay
Job Description
TerraPower, LLC. is hiring a highly capable and motivated System Transients Analysis Engineer who is responsible for analyses with application to the TerraPower sodium-cooled reactor program (Natrium). The candidate may also use software that combines control systems with thermal hydraulics for system or plant modeling
Key Responsibilities
- Develop RELAP5-3D models for steady state and transient one-dimensional network hydraulic analyses.
- Develop plant level control strategy and component level controller.
- Perform calculations using first principles of heat transfer, fluid dynamics, and thermodynamics to support and validate analysis results.
- Perform analysis of reactor normal operations, upset events, emergency events and faulted events to establish design, service, and test loadings and limits.
- Perform analysis of plant wide transients for evaluation of operation narratives and design solutions.
- Perform multiscale and multidisciplinary control analyses involving the thermal hydraulics of sodium, molten salt, and non-condensable fluids.
- Integrate with other engineering groups performing aspects of component, system, fuel, and control system design and related thermal-hydraulic testing.
Requirements
- B.S. or higher degree in nuclear, mechanical, or electrical engineering.
- Experience with system codes such as RELAP5 is a must.
- Experience with ASME component design/analysis is highly desirable.
- Experience with modeling control systems and I&C is highly desirable.
- Experience with nuclear power plant design or operations is desirable.
- Experience developing new analytical methods is desirable.
- Strong thermal-hydraulic analytical skills with one-dimensional hydraulic networks analysis, system codes experience and transient analysis.
- Strong technical writing skills
- Strong communication skills
- The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect, and a desire to foster teamwork
- This position is subject to qualification requirements in accordance with ANSI/ANS 3.1. Candidates must meet the minimum education and experience criteria applicable to the role, including relevant nuclear industry experience where required. Verification of data will be part of the hiring process.
Benefits & Perks
- Competitive Compensation
- Salary, eligible to participate in discretionary short-term incentive payments
- Comprehensive Medical and Wellness Benefits Medical Vision Dental 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
- TerraPower Career and Benefits information: https://www.terrapower.com/contact-us/careers/
Ready to Apply?
Apply directly on TerraPower's site
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