Mechanical Design Engineer (Fuel Manufacturing)

Location: Idaho Falls, Idaho, or remote within the United States. Remote employees must travel to hirify.global headquarters in Santa Clara, California, twice per quarter based on business or team needs.

Salary: $100,000–$150,000 annually.

Company

hirify.global develops fast fission power plants, nuclear fuel recycling technologies, and a domestic supply chain for critical radioisotopes.

What you will do

• Develop and own mechanical equipment and component designs for fuel fabrication facilities.
• Translate functional and facility requirements into robust 3D CAD models, assemblies, drawings, and bills of materials.
• Coordinate with analysis teams on thermal, structural, fatigue, and safety analyses to validate designs.
• Lead design reviews and evaluate designs for deficiencies, manufacturability, tolerances, fabrication, and assembly.
• Collaborate with vendors, fabrication partners, consultants, and engineering firms to mature designs and support production.
• Improve mechanical design processes, tools, standards, and best practices.

Requirements

• Bachelor’s or higher degree in Mechanical Engineering or a related discipline.
• 5–10 years of experience, including 4+ years in mechanical or structural design within aerospace, automotive, energy, or industrial equipment.
• Proficiency in 3D CAD modeling, including parts, large assemblies, and detailed drawings, with experience using PDM/PLM version control tools.
• Strong knowledge of DFM, DFA, tolerance stack-up analysis, material selection, manufacturing methods, and fabrication techniques.
• Ability to produce and interpret engineering drawings using GD&T in line with ASME Y14.5 or similar standards.
• Remote employees must be able to travel to Santa Clara headquarters twice per quarter.

Nice to have

• Experience with large structural weldments, mechanical joints, and large-scale fabrication.
• Experience with high-integrity or safety-critical systems in nuclear, aerospace, defense, or heavy industry.
• Experience leading hardware projects from concept and design through testing and production.
• Knowledge of thermal-mechanical analysis, high-temperature design, nuclear fission, or radiation effects on materials.
• Exposure to ANSYS or Python.

Culture & Benefits

• Collaborative, cross-functional startup environment focused on ownership, humility, and creative problem-solving.
• Flexible time off and flexible work hours.
• Equity and competitive compensation.
• 401k, health insurance, and FSA benefits.
• Employment may be contingent on successful completion of a drug screening, with possible testing under company policy and applicable law.