Senior Nuclear Structural Engineer

Fissionaire Corporation; Madison (WI); On-site; USD 110,000 - 170,000; Full time

Benefits offered by this job

Competitive salary with equity options

Comprehensive benefits, holiday andpto

Health insurance

Life insurance

Paid time off

Vision insurance

Job summary

Fissionaire Corporation in Madison, WI, seeks an experienced structural designer/analyst to own the design and analysis of reactor and support system parts. You will develop detailed CAD models, size components, and ensure designs meet nuclear-grade standards, collaborating across mechanical, nuclear, and thermal-hydraulic teams.

The role emphasizes documentation, QA, and readiness for reactor licensing, with relocation to Madison, WI required if not local.

Qualifications

• Bachelor’s or Master’s in Mechanical, Nuclear, Aerospace or related field.
• 10+ years experience in structures design and analysis.
• Proficient with CAD tools such as SolidWorks, Inventor, Creo, AutoCAD.
• Experience with high-temperature structural design and analysis.
• Familiar with nuclear industry standards (ASME, ASTM, RCC-MRx).
• Ability to read, interpret, and develop engineering drawings.
• Detail-oriented with disciplined documentation and version control.
• US Citizenship or Permanent Resident status required.

Responsibilities

• Develop detailed CAD models of nuclear system components, mechanical assemblies, piping, shielding, and structural elements.
• Develop structural loads in coordination with other engineering teams
• Analyze and size components, assemblies and systems based on developed loads using industry standards, engineering calculations and FEM.
• Develop and implement analysis methods for static, cyclic and thermal loads.
• Support design, development and execution of structural and hydraulic tests.
• Create analysis reports to support reactor licensing per business standards.
• Coordinate across disciplines to ensure all loads and design constraints are understood.
• Maintain configuration control, analysis standards, revision logs, and documentation in line with nuclear QA frameworks.
• Support design reviews by preparing designs, analysis, interface checks, and tolerance analyses.
• Collaborate with mechanical, nuclear, thermal-hydraulic, and systems engineers to refine concepts and resolve issues.
• Assist in vendor interface by providing clear specifications and updating designs/analysis as needed.
• Contribute to continuous improvement of design and analysis workflows, libraries, and standards.
• Willing to relocate to Madison, WI

Skills

CAD tools proficiency

High-temperature design

Structural analysis software

Nuclear industry standards

Engineering drawings interpretation

Documentation & version control

US Citizenship / PR status

Education

Bachelor’s or Master’s degree in Mechanical, Nuclear, Aerospace or related field

Tools

SolidWorks

Inventor

Creo

AutoCAD

Windchill

Teamcenter

FEMAP

Job description

Fissionaire Corporation in Madison, WI, seeks an experienced structural designer/analyst to own the design and analysis of reactor and support system parts. You will develop detailed CAD models, size components, and ensure designs meet nuclear-grade standards, collaborating across mechanical, nuclear, and thermal-hydraulic teams.

The role emphasizes documentation, QA, and readiness for reactor licensing, with relocation to Madison, WI required if not local.