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Senior Mechanical Design Engineer

Job in Bellevue, King County, Washington, 98009, USA
Listing for: TerraPower
Full Time position
Listed on 2026-04-30
Job specializations:
  • Engineering
    Mechanical Engineer, Energy Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below

Senior Mechanical Design Engineer

Location:

Bellevue, WA, USA

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.

Responsibilities
  • Coordinate and utilize inputs and requirements from Engineering and Project teams to produce equipment and components design solutions, including drawings, models, and specifications.
  • Perform planning for design activities and manage execution to the established plans.
  • Propose and develop tests required to validate functional and performance design requirements.
  • Perform scoping analysis and trade studies for design options.
  • Interface with cross‑functional team for design and analysis activities.
  • Perform engineering reviews of team members’ products.
  • Interface with engineers and subcontractors, providing direction and mentoring.
  • Support continuous learning and application of nuclear industry best practices to maintain the highest quality of engineering design and proactively identify process change/enhancement opportunities.
Key Qualifications
  • Education:

    B.S. degree in Mechanical Engineering or equivalent preferred.
  • Minimum of five years of equipment / component design experience; relevant M.S. and Doctorate degrees may be credited for up to two or four years of experience respectively.
  • Experience with 3D CAD, Solid Works preferred.
  • Experience with design of experiments with an emphasis on product testing.
  • Experience in finite element stress analysis, mechanical analysis methods, first‑principles calculations.
  • Familiarity in Design for Manufacturability (DFM) and Design for Assembly (DFA).
  • 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.
  • Excellent attention to detail.
  • The successful candidate will possess a high degree of trust and integrity, communicate openly, and display respect and a desire to foster teamwork.
The Ideal Candidate
  • Experience or familiarity with the rules of ASME Boiler Pressure Vessel Code Section III Division 5.
  • Design experience in the nuclear industry with core assemblies is highly desirable.
  • Experience with nuclear industry operation, DOE and NRC regulations.
  • Knowledge of neutronics, thermal‑hydraulics, and/or structural analysis.
  • Ability to lead multidisciplinary design activities.
  • Experience in finite element stress analysis using ANSYS and first‑principles calculations.
  • Experience with writing test requirements documents and developing nuclear product test…
Position Requirements
10+ Years work experience
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