TerraPower · 3 weeks ago
Senior/Principal Alkali Metal Test Engineer
TerraPower is a nuclear technology company based in Bellevue, Washington, focused on advancing nuclear energy and medical isotopes. The Senior/Principal Alkali Metal Test Engineer will be responsible for designing and conducting tests for high temperature liquid sodium and salt systems in support of the Natrium reactor.
Clean EnergyCleanTechEnergyNuclear
Responsibilities
Collaborate with internal customers to translate conceptual requirements into actionable test specifications, including design input, instrumentation strategy, and success criteria
Will serve as the lead test engineer supporting experimental design, operation, repair, and analysis of tests supporting the Natrium reactor with an emphasis on high temperature liquid sodium and salt systems
Coordinate cross-functional efforts in areas such as fixture design, control system integration, technician and designer support, and facility interfaces and integration
Design and select instrumentation for testing, based around data acquisition and control hardware and software, to meet experimental test objectives
Develop and document test plans, design test assemblies – including developing P&IDs, CAD models, and performing FEA of piping and vessels – and author test procedures for experimental work
Conduct data analysis and generate detailed test reports
Support continuous learning and application of nuclear industry best practices in order to maintain the highest quality of engineering design and proactively identify process change/enhancement opportunities
Qualification
Required
Bachelor's degree in applicable field of Engineering and a minimum of ten (10) years of related experience, or six (6) years and a Master's degree, or a PhD with 3+ years' experience
Bachelor's degree in applicable field of Engineering and a minimum of ten (15) years of related experience, or six (8) years and a Master's degree, or a PhD with 5 years' experience, or equivalent experience
Experience working with high temperature molten sodium and/or salt
Experience in a testing / research and development environment
Experience working in a laboratory environment
Experience with post-processing and documenting experiments
Experience with a suite of engineering related software, including SolidWorks, LabVIEW, ANSYS, and similar software
Experience with multiple types of testing (R&D, Acceptance, Validation, Qualification)
Ability to work with a multidisciplinary team of engineers and technicians
Ability to handle projects that include multiple objectives and ability to resolve conflicts between objectives
Ability to work on multiple tasks concurrently during a given work week
Excellent written and verbal communication skills with a strong attention to detail
Safety conscience
Ability to work with minimum direction to solve challenging research and development problems
The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork
Preferred
Experience in a testing / research and development environment
Experience working in a laboratory environment
Experience with a suite of engineering related software, including SolidWorks, LabVIEW, ANSYS, and similar software
Nuclear industry experience and experience working under an NQA-1 quality program
Benefits
Competitive Compensation
Salary, eligible to participate in discretionary short-term incentive payments
Comprehensive Medical and Wellness Benefits for family or individual
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.
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
Recent News
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