Structures Engineer II (Nuclear)

Location: Los Angeles, United States. Applicants must be U.S. citizens or nationals, lawful permanent residents, refugees, asylees, or eligible to obtain the required U.S. Department of State authorizations.

Salary: $115,000–$150,000 for Structures Engineer II; $140,000–$185,000 for Senior Structures Engineer, plus stock options.

Company

hirify.global is a Series C clean-energy startup developing mass-producible, inherently safe microreactors for terrestrial, underwater, and space applications.

What you will do

• Design, analyze, and optimize reactor structural components, including core restraint systems, control drum mounts, and primary heat exchanger vessel supports.
• Perform thermal, mechanical, and structural analyses covering stress, deformation, fatigue, and thermal loading.
• Define system architectures, operating limits, design margins, and concepts of operation.
• Develop calculations, specifications, interface definitions, design reports, and technical justifications for design reviews, verification, and licensing.
• Lead component- and system-level testing, including test articles, fixtures, instrumentation plans, and validation procedures.
• Collaborate with reactor, thermal, manufacturing, licensing, procurement, and supplier teams through fabrication, qualification, and deployment.

Requirements

• Bachelor’s degree in Mechanical, Aerospace, Nuclear Engineering, or a related discipline.
• 2+ years of professional experience designing, analyzing, and developing structural systems for demanding engineering applications.
• Experience with hand calculations, material selection, bolted and welded joint design, load paths, and thermo-mechanical trade studies.
• Experience using finite element analysis tools to evaluate structural performance, stress, deformation, fatigue, and thermal loading.
• Knowledge of structural design principles, materials, joints, and load-path development.
• Ability to work effectively on multidisciplinary teams and communicate technical concepts to technical and non-technical stakeholders.

Nice to have

• Master’s degree or higher in Mechanical, Aerospace, Civil, Nuclear Engineering, or a related discipline.
• Proficiency with ANSYS Mechanical, Abaqus, Nastran, or equivalent FEA software.
• Knowledge of thermal stresses, creep, fatigue, fracture, buckling, corrosion, and high-temperature materials.
• Experience with ASME Boiler & Pressure Vessel Code, AISC, ACI, AWS, NASA, or similar standards.
• Experience leading multidisciplinary efforts from concept through testing, qualification, and hardware deployment in nuclear, aerospace, defense, energy, or other safety-critical industries.

Culture & Benefits

• Work on first-of-a-kind microreactor hardware in a multidisciplinary engineering environment.
• Work closely with teams across reactor engineering, thermal engineering, manufacturing, licensing, procurement, and suppliers.
• Significant stock option package.
• Ability to work long hours and weekends when necessary to support critical milestones.
• Values include systems thinking, end-user focus, unconventional problem-solving, in-person collaboration, and operating effectively amid uncertainty.