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Senior/Principal Analytical Radiochemist, Innovation R&D Chemistry MCFR

TerraPower
United Statesfull_timeVerifiedPosted 31 Dec 2025
💰 $208,027/yr($138,685/yr$208,027/yr)

About the role

Location: Everett,Washington,United States

TITLE:               Senior/Principal Analytical Radiochemist, Innovation R&D Chemistry MCFR

LOCATION:       Everett, WA        

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) to proactively recruit, hire, and promote women, minorities, disabled persons and veterans.

Senior/Principal Analytical Radiochemist, Innovation R&D Chemistry MCFR

TerraPower is seeking a Senior or Principal Analytical Radiochemist to support the Molten Chloride Fast Reactor (MCFR) program. This position reports to the MCFR R&D Chemistry Discipline Manager. The role centers on analytical radiochemistry supporting the development and deployment of next-generation molten salt reactor technology, beginning with the design of radiochemical experiments and development of analytical methodologies, and evolving toward validation of salt stability, process integrity, and product qualification in support of reactor safety, performance, and safeguards. You’ll collaborate with colleagues across Safeguards, Testing & Materials, Plant Design, and Fuel Cycle teams in a high-performing, multi-disciplinary environment to provide data critical to enabling design decisions and ensuring regulatory compliance. This role is hybrid with on-site presence required four days per week at our Everett, WA laboratory. In this role, you will lead the charge in analytical radiochemistry as both expert and innovator, building the experimental backbone for TerraPower’s groundbreaking molten salt reactor technology, and help power a carbon-free future.

Key Responsibilities:

    Lead development and implementation of robust analytical methods and procedures for MCFR sample characterization, including gamma spectroscopy, ICP-MS, ICP-OES, and other relevant techniques

    Manage analytical scope related to measuring purity, and mass balance of MCFR products, and analyzing in-process samples for quality control

    Lead development and implementation of robust chemical and analytical separation processes needed to produce high quality data from high salt containing samples

    Direct installation, calibration, maintenance, and troubleshooting of MCFR radioanalytical instruments and equipment

    Recommend and develop alternative approaches for quantification and characterization of samples

    Ensure laboratory procedures are developed, maintained, and continuously improved and maintain high standards of organization, housekeeping, and operational effectiveness in MCFR analytical and radiochemistry facilities

    Ensure and promote strict adherence to site safety, radiation protection, and regulatory guidelines, working closely with health physicists, authorized users, and the RSO.

    Report progress on team and project performance to senior management through presentations, updates, and technical communications

    Drive continuou

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TerraPower

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