Aalo Atomics
Senior Mechanical Design Engineer — ASME Section III
Austin, TX +1 · On-site · Senior · Full-time · Posted Oct 15, 2026
- Location
- Austin, TX
Idaho Falls, ID - Experience
- 7+ years of relevant mechanical design experience.
- Education
- Bachelor’s degree in Mechanical Engineering or a related discipline.
- Visa sponsorship
- Applicants must be U.S. Citizens or U.S. Persons in compliance with 10 CFR Part 810 and may not hold non-compliant foreign citizenships.
About the job
Leads ASME Section III mechanical design and code compliance for reactor vessels and pressure-boundary systems, supporting certification, fabrication, testing, and release.
What you'll do
- Lead vessel, pressure-boundary component, support, and penetration design; perform Section III calculations and develop required technical reports.
- Support ASME N-, G-, and GC-stamp certification by preparing technical documentation and coordinating with quality, manufacturing, and the Authorized Nuclear Inspector.
- Own designs from concept through fabrication support, testing, and verification; lead design reviews and resolve cross-functional technical challenges.
What they ask for
- Bachelor’s degree in Mechanical Engineering or a related discipline.
- 7+ years of relevant mechanical design experience with pressure vessels, pressure-retaining equipment, or nuclear mechanical systems.
- Expert knowledge of ASME BPVC Section III, including familiarity with Subsections NCA, NB, NC, ND, and NF; experience with design classification and code calculations.
- Proficiency with 3D CAD and FEA or structural-analysis tools; able to work on-site in Austin, TX or Idaho Falls, ID.
Nice to have
- Experience supporting ASME stamp certification or designing nuclear components to Section III.
- Experience with advanced reactor systems, elevated-temperature design, high-temperature alloys, or ASME BPVC Sections II, V, IX, and XI; PE license is a plus.
Tools
ASME BPVC Section III, 3D CAD, FEA, ASME Section III Division 5, Code Case N-47/N-861, ASME BPVC Sections II, V, IX, and XI
Model-written summary · the original posting is authoritative