Nuclear Fuels Performance Engineer

RiseMe; Bellevue (WA); On-site; USD 154,000 - 205,000; Full time

Benefits offered by this job

Competitive Compensation

Relocation Assistance

PTO 21 days

Medical and Wellness Benefits

401k Plan

Job summary

TerraPower in Bellevue, WA, is seeking a Nuclear Fuels Performance Engineer to support the fuel performance team and advance advanced reactor design.

You will perform thermo-mechanical analyses, contribute to test plans, and document results while coordinating with cross-functional groups to ensure robust design decisions and licensing readiness.

Qualifications

• Advanced degree in Nuclear, Mechanical, or Materials Engineering or equivalent.
• Strong knowledge of reactor physics, design methods, and modeling.
• Experience with fast reactor fuel performance is preferred.

Responsibilities

• Perform thermo-mechanical analysis of fuel rods and core components for design, benchmarking and irradiation testing.
• Interface with cross-functional groups to inform and resolve design decisions.
• Document results in engineering reports and calculations.
• Design and run sensitivity studies on meshing, physics coupling and material models.
• Support software reviews and licensing-related documentation.
• Develop methods to assess uncertainty and impact on safety margins.

Skills

NQA-1

Python

Fortran

FEA

Education

Advanced degree in Nuclear, Mechanical, or Materials Engineering

Tools

ABAQUS

ANSYS

COMSOL

MOOSE

Job description

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.

Nuclear Fuels Performance Engineer

TerraPower, LLC is seeking a highly motivated Nuclear Fuels Performance Engineer. In this role, you will support the nuclear fuel performance team.

Responsibilities

• Perform thermo-mechanical analysis of fuel rods and other sodium fast reactor core components for: Core Design, Code Benchmarking and Validation, and Irradiation Testing (Design of Experiments and Post-Irradiation Examination analysis)
• Interface with cross-functional groups to inform and resolve component and system design decisions
• Document results of thermo-mechanical analyses in the form of engineering reports, engineering calculations, test plans, etc.
• Design and execute sensitivity studies to understand the effects and validity of various modeling assumptions, including meshing, physics coupling, material models, and design tolerances
• Support software and document reviews in areas of fuel performance modeling, fuel performance, or other areas of subject expertise
• Build and apply methods to assess the propagation of uncertainty and their effect on safety margins, especially relative to irradiation test design
• Enhance engineering team's ability to build models and make meaningful conclusions from simulation output through input tools, visualization, reports, etc.
• Prepare test plans and documentation to support irradiation and performance testing of nuclear fuels.
• Create formal documentation of nuclear fuels methods software requirements, design, implementation, and testing in support of licensing TerraPower reactors.
• Update, improve, and/or create software to satisfy all licensing requirements during the Verification and Validation (V&V) process

Key Qualifications and Skills

• Advanced degree in Nuclear, Mechanical, or Materials Engineering or equivalent and 4+ years of relevant experience preferred
• Fast reactor physics and design intuition highly desired
• Experience in understanding and executing nuclear design and analysis methodologies; ideally with a focus on fast-neutron reactors
• Excellent knowledge of the methods of reactor physics analysis, finite element models, constitutive material models
• Experience in performing design activities to applicable requirements such as NQA-1, ASME B&PV, AWS, 10 CFR 50, Appendix B, or equivalent
• Experience using ABAQUS, ANSYS, COMSOL, MOOSE, or an equivalent FEA code
• Proven ability to integrate and automate simulation tools
• Strong programming skills in any language required. Preferred programming language experience with Python and Fortran
• Demonstrable capabilities with fundamental software development tools (e.g. IDEs, version control, profilers, debuggers, documentation builders, packaging tools)
• Experience interacting on nuclear methodology with the NRC under an ASME NQA-1 compliant QA environment preferred
• Good working knowledge of general numerical methods and applied mathematics (e.g., PDEs, numerical stability, statistics, numerical analysis, dynamics)
• Strong formal technical documentation skills required
• Ability to consistently deliver to an aggressive schedule
• Self-motivated: able to seek out tasks and produce value aligned with team goals without waiting for next assignment
• Passion for and dedication to software best practices
• Willingness to openly give and accept professional criticism through code reviews and other venues
• Strong verbal communication skills desired
• The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect, and a desire to foster teamwork

This 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 Functions

• Motor 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: Prolonged
• Special Senses: Visual and audio focused work
• Work Conditions: Stairs, typing/keyboard, standard and/or sitting working environment of >8 hours/day
• Travel 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.

Job details

Salary Range: $153,861 - $205,149 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-time

Benefits:

• Competitive Compensation
• Salary, eligible to participate in discretionary short-term incentive payments
• Comprehensive Medical and Wellness Benefits
• Medical
• Vision
• Dental
• Life and Disability
• Gender Affiliation 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

TerraPower Career and Benefits information: https://www.terrapower.com/contact-us/careers/