Senior Mechanical Engineer (Nuclear Energy)

Location: Torrance, California, United States. Applicants must be legally authorized to work in the United States as a U.S. citizen or lawful permanent resident.

Salary: $140,000–$180,000 USD per year

Company

hirify.global develops scalable, high-temperature nuclear power systems, fuel fabrication, and advanced energy technologies for industry, hydrogen, and next-generation manufacturing.

What you will do

• Lead mechanical design for major subsystems while balancing performance, manufacturability, and cost.
• Create detailed 3D CAD models, assemblies, and engineering drawings using SolidWorks, Creo, NX, or similar tools.
• Apply GD&T, tolerance analysis, FEA, CFD, and hand calculations to validate designs and reliability.
• Oversee prototype fabrication, assembly, testing, and design refinement based on test results.
• Partner with electrical, manufacturing, systems, supplier, and vendor teams on integration, DFM feedback, process selection, and quality control.
• Mentor junior engineers and improve mechanical design, documentation, and configuration-management practices.

Requirements

• Bachelor’s degree in Mechanical Engineering or a related field.
• 5+ years of experience in mechanical design and product development.
• Experience designing and delivering production-ready hardware.
• Expertise in CAD and mechanical drafting standards, with strong knowledge of materials, manufacturing processes, and mechanical systems.
• Experience performing or overseeing FEA and CFD analyses.
• Strong communication, technical documentation, leadership, and root-cause investigation skills.

Nice to have

• Master’s degree in Mechanical Engineering or a related field.
• Experience with high-performance or safety-critical systems in aerospace, energy, or defense.
• Deep understanding of DFM/DFA, reliability engineering, PLM/PDM tools, and design-control processes.
• Hands-on prototyping, testing, and validation experience.

Culture & Benefits

• High-impact startup environment with significant ownership and autonomy.
• Competitive base salary and equity ownership.
• Comprehensive medical benefits and unlimited PTO.
• Free daily lunch and dinner provided onsite, plus a generous PPE stipend.
• Opportunities for rapid career growth and direct collaboration with experienced operators, engineers, and industry leaders.