Cad Designer Ii; 2D​/3D; Nuclear

Key Responsibilities

• Develop detailed 2D and 3D CAD models for nuclear system components, mechanical assemblies, piping, shielding, and structural elements.
• Translate engineering requirements, calculations, and specifications into manufacturable, quality‑controlled drawings.
• Maintain configuration control, drawing standards, revision logs, and documentation in accordance with nuclear QA frameworks (e.g., ASME NQA-1, ANSI/ANS standards).
• Support design reviews by preparing accurate models, exploded views, interface checks, and tolerance analyses.
• Collaborate closely with mechanical, nuclear, thermal‑hydraulic, and systems engineers to refine concepts, resolve design issues, and ensure alignment across disciplines.
• Conduct CAD‑based simulations, clash detection, and fit‑up validation using industry tools.
• Assist in vendor interface by providing clear fabrication packages, answering technical queries, and updating drawings as needed.
• Contribute to continuous improvement of CAD workflows, libraries, and design standards.

• Associate’s or Bachelor’s degree in Drafting, Mechanical Design, Engineering Technology, or related field or 5+ years experience as a drafter/modeler.
• Professional experience in CAD design for nuclear, energy, aerospace, or similarly regulated industries.
• Strong proficiency with modern CAD tools (e.g., Solid Works, Inventor, Creo, AutoCAD, or similar).
• Solid understanding of GD&T, mechanical tolerances, fabrication methods, and material properties.
• Experience applying nuclear‑industry standards (ASME, ASTM, RCC‑MRx, etc.).
• Ability to read, interpret, and develop engineering drawings, P&IDs, and system schematics.
• Detail‑driven mindset with a disciplined approach to documentation and version control.
• U.S. citizenship or permanent residency required.

• Experience in reactor design, radiation shielding, balance‑of‑plant systems, or nuclear fuel cycle equipment.
• Familiarity with PLM/PDM systems (Windchill, Teamcenter, etc.).
• Background in piping design, pressure vessel design, or seismic qualification.
• Exposure to manufacturing processes, suppliers, and tolerancing best practices in regulated environments.

• Competitive salary with equity options.
• Comprehensive benefits, holiday and PTO schedule.
• Opportunity to shape foundational operations in a groundbreaking nuclear startup.

• Your drawings are clean, accurate, and ready for fabrication—no guesswork, no rework.
• You communicate clearly and catch issues early, keeping engineering and manufacturing aligned.
• You take ownership of your work and help push Fissionaire’s designs forward with confidence and precision.