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Senior Mechanical Engineer ASME Lead

System One | Bellevue, United States | Posted June 24, 2026

Position Overview

Senior Mechanical Engineer – ASME Lead (Contract)
Remote | Long-Term Contract
$69-$115/hr

System One is seeking a Senior Mechanical Engineer – ASME Lead to support the design and development of advanced nuclear reactor systems. This role will focus on the design, analysis, and certification of safety-related reactor components and pressure-retaining systems in accordance with ASME Section III requirements.
Responsibilities

+ Lead design and analysis of ASME Section III pressure boundary and internal reactor components.

+ Prepare, review, and certify Design Specifications (DS) and Design Reports (DR).

+ Develop engineering calculations, load evaluations, qualification reports, and design documentation.

+ Ensure compliance with ASME Section III, NQA-1, and NRC requirements.

+ Support licensing activities, design reviews, audits, and code certification efforts.

+ Collaborate with multidisciplinary engineering teams, supp...

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