Senior Engineer

Senior Engineer, Core Thermal Hydraulics Methods and AnalysisBellevue, Washington, United StatesTerraPower 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.The Senior Engineer reporting to the Manager of Core Thermal Hydraulics Methods and Analysis develops and applies thermal-hydraulic analysis methods, performs code validation, applies first-principles calculations, and integrates with multidisciplinary teams to solve reactor-core design challenges and support testing programs. The role provides technical recommendations through formal documentation and presentations, requiring strong analytical skills, expertise with nuclear systems codes, and the ability to work concurrently across multiple complex tasks.ResponsibilitiesDevelop and apply thermal-hydraulic analysis methods, including steady state and transient one-dimensional network hydraulic analysesComputational analysis of in-core steady-state thermal hydraulic phenomenaPerform code benchmarking and validation analyses to support code qualification and methodology developmentPerform calculations using first principles of heat transfer, fluid dynamics, and thermodynamics to support and validate analysis resultsIntegrate with other engineering groups performing aspects of component, system, fuel, and control system analysis and related thermal-hydraulic testingSupport development of testing programs needed for reactor core & componentsSupport the technical decision to address the critical challenges in reactor core designSupport the project planning and define the work scopes for the critical path of the projectWork with cross-disciplinary teams to analyze the thermal and mechanical design considerations for the safety of the reactor and its componentsProvide technical presentations on analyses performed to the broader team.Prepare informal and formal reports to document findings and make reasoned recommendations, and report to core thermal hydraulic team manager/leadKey Qualifications and SkillsMinimum of 6 years of related experience with Bachelor's degree; or 3 years and a Master's degree. PhD without commercial experience may be acceptable with relevant research or expertise.Programming language proficiency in either python or C++ a plusExperience with a nuclear systems code, or subchannel analysis code (e.g. RELAP, SASSYS, GOTHIC, VIPRE-01) a plusDemonstrated ability to participate on a multi-disciplinary team of engineersExperience with analysis of nuclear reactor core subchannel analysis a plusExperience with low Prandtl number heat transfer analysis a strong plusExperience with high temperature thermal-fluid systems (e.g. sodium) a plusCreative thinker with demonstrated strong analytical/problem solving skillsAbility to work on multiple tasks concurrently during a given work weekExcellent writing and communication skillsThe successful candidate will possess a high degree of trustworthiness and integrity, communicate openly and display respect and a desire to foster teamworkThis position is subject to qualification requirements in accordance with ANSI/ANS 3.1. Candidates must meet the minimum education and experience criteria applicable to the role, including relevant nuclear industry experience where required. Verification of data will be part of the hiring process.Job FunctionsMotor Abilities: Sitting 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: ProlongedSpecial Senses: Visual and audio focused workWork Conditions: Stairs, typing/keyboard, standard and/or sitting working environment of >8 hours/dayTravel required 0-10%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.Salary Range: $131,828 - $171,206 Any salary offered within the posted salary band is based on market data and commensurate with the selected candidate's qualifications and experience. This range is specific to Washington State.Job Type: Full-timeBenefitsCompetitive CompensationSalary, eligible to participate in discretionary short-term incentive paymentsComprehensive Medical and Wellness Benefits MedicalVisionDentalLife and DisabilityGender Affirmation BenefitsParental Leave401k PlanGenerous Paid Time Off (PTO) 21 days of annually accrued PTOGenerous Holiday Schedule 10 paid holidaysRelocation AssistanceProfessional and Educational Support Opportunities