Senior Mechanical Engineer ASME Lead

TerraPower.•Bellevue, WA

2d•Onsite

About The Position

TerraPower is a nuclear technology company focused on advancing nuclear energy and medical isotopes. The company aims to raise global living standards through affordable, secure, and environmentally friendly nuclear energy. Founded in 2006, TerraPower is committed to being a world leader in new nuclear technologies and developing future leaders in the nuclear field. The company is seeking motivated professionals interested in advanced nuclear reactor research and development, influencing the nuclear power landscape, and contributing to the production of medical isotopes. TerraPower is an Equal Opportunity Employer.

Requirements

B.S. degree in Mechanical engineering or equivalent preferred
Minimum of eight years of equipment / component design experience; relevant M.S. degree credited as two years of experience.
Active Professional Engineer (P.E.) license required
Working experience with ASME Boiler and Pressure Vessel Code Section III.
Demonstrated experience certifying Design Specifications and Design Reports for nuclear pressure-retaining components
Deep understanding of ASME Section III, NQA-1, and related NRC regulations.
Experience in finite element stress analysis, mechanical analysis methods, and commercial mechanical stress analysis modeling tools with emphasis on ANSYS.
Excellent writing and communication skills.
Strong analytical/problem solving skills, creative thinker.
High degree of trust and integrity, communicate openly and display respect and a desire to foster.
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.

Responsibilities

Perform detailed design, analysis, and documentation for ASME Section III Class HB pressure boundary components, including vessels, piping, valves, heat exchanger elements, and associated subcomponents used in nuclear facilities.
Prepare design specifications, design reports, load evaluations, stress analyses, and code compliance calculations in accordance with ASME Section III rules and applicable NRC guidance.
Conduct pressure boundary evaluations, including fatigue, thermal, seismic, and time-dependent material evaluations.
Collaborate with multidisciplinary engineering teams to define design requirements, resolve technical issues, and optimize component performance.
Interface with internal quality teams, third-party reviewers, and regulatory bodies to support audits, design reviews, and code certification processes.
Support development of fabrication drawings, weld requirements, inspection criteria, material selection, and acceptance standards.
Support material selection, fabrication requirements, inspection criteria, and acceptance standards for pressure boundary components.
Participate in engineering change processes, nonconformance evaluations, and corrective action development as required.
Maintain current knowledge of ASME Section III revisions, NRC guidance, and industry best practices.
Provide technical mentorship to junior engineers as needed.