TerraPower.
Principle Engineer, Core Mechanical Test
Bellevue, Washington, United States
Sponsorship not specified$168k-$252kDetected 8 hours ago
Data AnalysisProject ManagementJiraConfluenceSolidWorksANSYSStructural AnalysisMechanical DesignLabVIEWResearchLeadershipCommunicationMicrosoft Office
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Entry-level history0
PERM / green-card track0
Lottery odds (Level IV)94
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About the role
- TerraPower is a nuclear technology company based in Bellevue, Washington.
- At its core, the company is working to raise living standards globally through a more affordable, secure, and environmentally friendly form of nuclear energy along with innovations in medical isotopes to improve human health.
- In 2006, TerraPower originated with Bill Gates and a group of like-minded visionaries who evaluated the fundamental challenges to raising living standards around the world.
Responsibilities
- Lead development, execution, and documentation of mechanical test plans, design specifications, and validation strategies for reactor core mechanical systems.
- Apply quantitative, statistical, and engineering analysis techniques to evaluate test outcomes, identify root causes, and drive data‑based conclusions.
- Develop and oversee complex mechanical testing campaigns from concept through execution and final reporting.
- Translate conceptual requirements into detailed mechanical test specifications, including design inputs, instrumentation strategies, and success criteria.
- Define, select, and validate measurement instrumentation (force, displacement, strain, temperature, vibration, loading, etc.).
- Coordinate cross‑functional activities including fixture design, control system integration, and laboratory or facility planning.
- Lead troubleshooting, failure analysis, and optimization of mechanical components and systems.
- Collaborate across teams to address technical challenges related to reactor core mechanical behavior, system integration, and experimental analysis.
- Support safe execution of mechanical testing activities while following TerraPower processes and Washington State regulations.
- Mentor junior engineers and contribute to developing best practices for mechanical testing and system analysis.
Requirements
- Travel required 0-10%
- Minimal, with ability to safely lift up to 25 pounds.
- 12+ years of relevant engineering experience with a B.S. degree
- or equivalent experience with an advanced degree.
- Degree in Mechanical Engineering or a directly related technical discipline.
- Experience with multiple types of testing (R&D, acceptance, validation, qualification).
Nice to have
- Experience working with large, complex mechanical systems strongly preferred.
- Experience in project management strongly preferred.
- Familiarity with engineering tools such as SolidWorks, LabVIEW, AutoDesk, Jira/Confluence, and Microsoft Office 365 preferred.
Compensation
- Salary, eligible to participate in discretionary short-term incentive payments
Benefits
- Comprehensive Medical and Wellness Benefits
- Life and Disability
- Gender Affirmation Benefits
- Parental Leave
- Generous Paid Time Off (PTO)
- 21 days of annually accrued PTO
- Generous Holiday Schedule
- Professional and Educational Support Opportunities
- TerraPower Career and Benefits information: https://www.terrapower.com/contact-us/careers/
Company info
- Verification of data will be part of the hiring process.
- To facilitate TerraPower's export control reviews, you will be asked as part of the
Visa & Work Authorization
- Government export control requirements
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This listing is sourced directly from TerraPower.'s careers page and normalized into a canonical job model.