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INTERNSHIP DETAILS

Engineering Intern – Alkali Metal Testing

CompanyTerraPower

LocationEverett

Work ModeOn Site

PostedJanuary 7, 2026

Internship Information

Core Responsibilities

The intern will perform small laboratory-based liquid sodium development tests to support the Natrium reactor project. They will design and build test apparatus, document data, and analyze results.

Internship Type

full time

Salary Range

$23 - $52

Company Size

973

Visa Sponsorship

Language

English

Working Hours

40 hours

Apply Now →

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About The Company

TerraPower is a leading nuclear innovation company that strives to improve the world through nuclear energy and science. TerraPower’s innovators create technologies to provide safe, affordable and abundant carbon-free energy. They devise ways to use heat and electricity to drive economic growth while decarbonizing industry. And they develop processes to extract radioisotopes for medical use in lifesaving cancer treatments. We’re proud of our culture of mission-driven innovation. Our employees develop clean, safe energy to address climate change and global poverty, and drive medical advances for human health applications. We attract exceptional people and encourage them to confront big challenges with bold creativity. We drive hard for progress while keeping our values at the forefront. TerraPower was founded by Bill Gates and a group of like-minded visionaries that decided the private sector needed to take action in developing advanced nuclear energy to meet growing electricity needs, mitigate climate change and lift billions out of poverty. Advanced reactors and other isotopic applications are now possible with technology and enhanced computing capabilities that were unimaginable a few decades ago. At TerraPower, we are innovating in nuclear to improve the lives of people everywhere and to build the clean energy of tomorrow – today. TerraPower is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by federal, state, or local law. In addition, as a federal contractor, TerraPower has instituted an Affirmative Action Plan (AAP) in an effort to proactively recruit, hire, and promote women, minorities, disabled persons and veterans.

About the Role

TITLE: Engineering Intern – Alkali Metal Testing LOCATION: Everett, WA, USA        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. They recognized energy access was crucial to the health and economic well-being of communities and decided that the private sector needed to take action and create energy sources that would advance global energy deployment. TerraPower’s mission is to be a world leader in new nuclear technologies, while developing innovators and future leaders in the nuclear field. As a result, the company’s activities in the fields of nuclear energy and related sciences are yielding significant innovations in the safety and economics of nuclear power, hybrid energy and medical applications – all for significant human health benefits. TerraPower is seeking to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power landscape and bringing forward the critical production of medical isotopes.  TerraPower is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by federal, state, or local law. In addition, as a federal contractor, TerraPower has instituted an Affirmative Action Plan (AAP) in an effort to proactively recruit, hire, and promote women, minorities, disabled persons and veterans. Engineering Intern – Alkali Metal Testing  TerraPower, LLC is seeking a highly motivated Alkali Metal Testing Intern to support the testing efforts of the Alkali Metal Testing team.  This internship will focus on supporting ongoing liquid sodium testing and development work for the Natrium Demonstration reactor.   The intern will be responsible for designing, building, executing, and reporting on scoping tests that support short turnaround requests from the Natrium design organization. These scoping tests are small, benchtop-scale experiments and tests that examine how liquid sodium metal behaves in varied applications. The intern would work closely with and receive guidance from their supervisor and colleagues when performing the work and analyzing the results. Through this work, the intern will gain hands-on laboratory experience, work with state-of-the-art testing equipment, increase their knowledge of both the testing process and how to analyze results, and develop their written and oral communication skills in an industrial setting. The ideal candidate will have a background in Engineering or another related discipline.  Previous experience in a laboratory environment is preferred. Responsibilities·     Perform small laboratory-based liquid sodium development tests to support the Natrium reactor project·     Design and build the test apparatus to accomplish each test·     Work with the requesting design organization to understand the unique needs of each scoping test·     Document and deliver the data to the responsible engineer.·     Analyze, interpret, and present results·     Assist test engineers with other larger tests as needed, to include design, fabrication, operation, and reporting activities Key Qualifications and Skills ·     Currently enrolled in undergraduate or graduate program in Engineering or a related technical discipline·     Experience performing hands-on mechanical work·     Excellent verbal and written communication skills·     Experience with SolidWorks or similar 3D modeling software preferred·     Previous experience working in a laboratory environment preferred·     Experience with data acquisition systems preferred·     Experience reporting laboratory test results graphically and numerically·     The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork. Job Functions Job Functions are physical actions and/or working conditions associated with the position.  These functions may also constitute essential functions for the job which the employee must be able to fulfill, with or without accommodation.  Information provided below is to help describe the job so that the applicant has a reasonable understanding of the job duties/expectations.  An applicant's ability to perform and/or tolerate these actions and conditions will be discussed and workplace accommodations may be made on a case-by-case basis following an individualized assessment of the applicant and other considerations, including but not limited to any governing safety standards.  ·     Motor Abilities: Sitting and/or standing for extended periods, bending/stooping, grasping/gripping, fine motor control (hands)·     Physical exertion and/or requirements: Minimal, with ability to safely lift up to 25 pounds·     Repetitive work: Prolonged·     Special Senses: Visual and audio focused work·     Work Conditions: Stairs, typing/keyboard, standard and/or sitting working environment of >8 hrs./day·     Travel required: 0-5% TerraPower’s technology is controlled for export by various agencies of the U.S. Government.  TerraPower must evaluate applicants who are foreign nationals (other than asylees, refugees, or lawful permanent residents) in accordance with U.S. Government export control requirements.  To facilitate TerraPower’s export control reviews, you will be asked as part of the application process to identify whether you are a U.S. Citizen or national, asylee, refugee, or lawful permanent resident of the United States.  Government export authorization approval times vary.  Based on the business needs for a particular position, TerraPower may not consider a foreign national from a country if it is impracticable to obtain timely Government export approval.    Job details Hourly rate range*Undergraduate: $22.65 - $29.65Graduate: $40.43 - $43.89PhD: $43.89 - $51.71Job Type:  InternBenefits:•         Competitive Compensation•         Hourly pay rate•         Weekly stipend for out of area Interns•         Weekly commuter stipend for local area Interns•         Paid Time Off (PTO)•         Interns accrue 1 hour of PTO for every 30 hours worked•         Holiday Schedule•         Paid holidays commensurate with Internship period and TerraPower Holiday Schedule•         Relocation Assistance for out of area Interns•         **Intern pay rate will be commensurate with degree path and academic year completed at start of Internship. Please visit <a href="file:///C:/Users/fbabauta/Downloads/www.terrapower.com%20">www.terrapower.com</a> to apply

Key Skills

EngineeringLaboratory ExperienceMechanical WorkVerbal CommunicationWritten CommunicationSolidWorksData Acquisition SystemsTest Result Reporting