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Senior Mechanical Designer

Job in Bellevue, King County, Washington, 98009, USA
Listing for: TerraPower LLC.
Full Time position
Listed on 2026-06-01
Job specializations:
  • Engineering
    Mechanical Engineer, Engineering Design & Technologists
Job Description & How to Apply Below
Terra Power 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, Terra Power 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. Terra Power'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."

Terra Power 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. Terra Power 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.

Senior Mechanical Design Engineer

Terra Power, LLC. Is seeking a highly motivated Mechanical Designer. In this role, you will create structural and mechanical design solutions, 3D CAD models, and engineering drawings for the conceptual and preliminary design development of advanced Generation IV nuclear reactors. Candidates must have extensive experience in mechanical/structural design and drafting using a mainstream CAD system.

Responsibilities
  • Create CAD models, optimized for anticipated future work, of conceptual and detailed designs in the area of nuclear fuel handling
  • Maintain large, conceptual assembly models in support of varying performance analysis
  • Create engineering drawings, applying ASME 14.1 and Y15.5 standards
  • Check detail and layout drawings, verifying information is accurately represented and drafting standards are met
  • Update and modify models and drawings based on changes required by engineering team
  • Properly maintain drawing system integrity in product data management system
  • Define modeling structure for large, complex design projects
  • Review group design standards and propose improvements
Key Qualifications and Skills
  • A minimum of seven years of CAD proficiency is required, Solid Works preferred
  • Demonstrated experience with Geometric Dimensioning and Tolerancing per ASME Y14.5
  • Experience in Design for Manufacturability (DFM) and Design for Assembly (DFA)
  • Experience in Mechanical and Machine Design, preferably in the area of nuclear fuel handling
  • Experience using a product data management (PDM) system
  • Organized and detail oriented
  • Excellent writing and communication skills
  • Strong analytical/problem solving skills, creative thinker
  • Ability to work with minimum direction to solve challenging problems
  • Ability to work on multiple tasks concurrently during a given work week
  • Ability to manage working groups and maintain schedule of deliverables
  • Nuclear design experience preferred but not required
  • The successful candidate will possess a high degree of trustworthiness and integrity, communicate openly and display respect and a desire to foster teamwork
  • The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork
  • Actual position starting level and title will be determined based on assessment of qualifications
This position is subject to qualification requirements in accordance with ANSI/ANS 3.1. Candidates must meet the minimum education and experience…
Position Requirements
10+ Years work experience
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