Senior Mechanical Engineer ASME Lead, Class HB

Senior Mechanical Engineer ASME Lead, Class HB Direct Hire Job Site : Onsite Job No. : 32518 City : Bellevue State : WA Pay Range : $169K- $235K Job Details:BENEFITS: Medical, Dental & Vision, Life, Life & Disability, 401K, PTO, Holidays, Parental Leave, Educational Support, Relocation Assistance & Flexible Schedule. ROLE & RESPONSIBILITIES Our advanced nuclear client is seeking Senior Mechanical Engineer ASME Lead to join their team! In this role, you will create design solutions for the design development of various reactor structures and components for a Generation IV Reactor. Candidates must have extensive experience in equipment design. The Senior Engineer will report to the Reactor Enclosure System Component Manager. The Senior Engineer will work as part of a high functioning team of engineers and scientists focused on developing the design of next generation advanced nuclear reactors. We are seeking is a highly experienced engineer with a strong background in ASME Section III nuclear design. The successful candidate will be responsible for preparing, reviewing, and certifying Design Specifications (DS) and Design Reports (DR) in accordance with ASME Section III requirements, as well as supporting licensing, compliance, and customer deliverables. • Perform detailed design, analysis, and documentation for ASME Section III Class HB pressure boundary components, which may include 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. ESSENTIAL QUALIFICATIONS • Education: 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. • The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork. WHY AVERRO? Averro is a Veteran-Owned organization dedicated to delivering innovative talent solutions, business consulting, and technology services that propel businesses and careers forward. We live by our ethos: Be Curious | Build Trust | Empower Each Other. These values show in our commitment to client satisfaction, timely support, and unmatched consultant care. Our Aim - Your Ascent. Averro is an equal opportunity employer, and we are committed to diversity, equity, and inclusion in the workplace. All qualified applicants will receive consideration for employment, regardless of criminal histories, consistent with legal obligations. All employment decisions shall be made without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law. View our privacy policy here:

Created: 2026-04-02