TITLE: Functional Containment and Radionuclide Transport EngineerLOCATION: Bellevue, WA, USATerraPower 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.Functional Containment and Radionuclide Transport EngineerThe Functional Containment and Radionuclide Transport Engineer is responsible for performing radionuclide transport calculations within systems and buildings to support effluent releases and to develop mechanistic source terms for postulated accidents (equivalent to Level-2 PRA). They will work directly with other nuclear safety and licensing staff to ensure technical and regulatory requirements for nuclear safety and worker protection are met. Other engineering activities include, but are not limited to, contributing to the development of computational methodologies and models, contributing to software commercial grade dedication, participating in hazard analysis, participating to Phenomena Identification and Ranking Table (PIRT) exercises, participating to Structures, Systems and Components (SSC) classification, developing analytical methods, as well as performing verification and validation activities.ResponsibilitiesDevelops analytical models for quantification of radiological source terms in the gaseous and liquid effluents during normal operation and anticipated operational occurrencesDevelops analytical models for ex-core radionuclide sources such as radwaste systems, spent fuel, and auxiliary purification systems.Supports the development of mechanistic (accident) source term methods for postulated accidentsDevelop analytical models for containment performance including mass and energy release and subsequent leak ratesProvide inputs to radiological consequence modelsPerform technical work to support regulatory submittals and NRC interactionsSupport establishment of overall functional containment strategy to meet risk-informed performance-based effluent and accidental releases including development of Specified Acceptable Radionuclide Release Design LimitsWork with an interdisciplinary team of engineers to establish functional, reliability, performance, safety, and quality requirements for SSC that support the radionuclide containment function as well as support the overall design.Establish and maintain documentation of model development and analysis results.Perform engineering reviews of analyses and other engineering design media.Potential to support analysis and recommend design solutions for worker radiological protection including control room habitabilityPotential to perform radiological dose assessments to