Senior Mechanical Engineer (Nuclear)

Location: 100% onsite at the El Segundo, California headquarters; extended hours and weekends may be required.

Salary: $133.5K–$184.8K, plus equity.

Company

hirify.global develops mass-produced, transportable nuclear microreactors, including the 1 MW Kaleidos reactor for critical infrastructure, remote sites, and commercial applications.

What you will do

• Own critical structures including transportable shielding, container systems, and high-temperature graphite and metallic systems.
• Conduct trade studies, select materials, and develop designs that meet program requirements and volumetric constraints.
• Perform static strength, durability, fatigue, vibration, shock, and other thermomechanical analyses using hand calculations and finite-element tools.
• Develop manufacturing and assembly instructions, test plans, and subassembly manufacturing and test schedules.
• Create and manage bills of materials, develop suppliers, and support assembly, integration, and testing.
• Own subsystem FMEA risk analysis and communicate requirements and technical feedback across functional teams.

Requirements

• Bachelor’s degree from an accredited institution in Mechanical, Aeronautical, Civil, or Structural Engineering.
• 6+ years of experience designing structures, including 4+ years performing stress analysis with hand calculations and finite-element tools.
• Experience with Abaqus, Ansys, FEMAP, or similar finite-element analysis tools.
• Willingness to work 100% onsite at the El Segundo headquarters.
• Willingness to work extended hours and weekends as necessary.

Nice to have

• Experience designing multi-component assemblies in NX or similar CAD tools.
• Experience designing hardware that was manufactured, deployed, and iteratively improved.
• Experience resolving thermal expansion issues and applying GD&T.
• Experience working with interdisciplinary teams and text-based software development tools.
• Ability to derive free-body diagrams for unfamiliar systems and apply both analytical and higher-fidelity finite-element methods.
• Strong organizational, written, and oral communication skills; self-motivated.

Culture & Benefits

• Full-time employees receive a substantial incentive stock plan.
• Medical, vision, dental, FSA/HSA, life, accident, hospital, critical illness, and commuter benefits are available.
• Eight weeks of paid parental leave for all parents, with additional paid pregnancy leave for California employees.
• Flexible PTO, catered lunch, snacks and drinks, and sponsored One Medical memberships.
• Team-bonding events, happy hours, and in-person collaboration at the El Segundo headquarters.

Hiring process

• Applications may be submitted through the recruiting contact at recruiting@hirify.globalnuclear.com.
• Offers are subject to the applicant’s capacity to serve in compliance with U.S. export controls because the role involves access to controlled technology.