Mechanical Engineer (Site Infrastructure)

Location: Hawthorne, California, United States; full-time onsite presence five days per week is required

Salary: $100,000–$140,000 per year, plus stock options

Company

hirify.global develops AI-native manufacturing systems that integrate software, hardware, and physics to produce industrial-scale parts.

What you will do

• Design and implement infrastructure for the Skyfall next-generation printing system, including chillers, industrial plumbing, and high-flow gas delivery.
• Develop factory performance monitoring systems using sensors and data acquisition to track utility health, pressure, and flow rates.
• Oversee power, process water, nitrogen, argon, and other critical utilities in accordance with safety codes.
• Define preventive maintenance for pumps, compressors, HVAC, and other facilities equipment to improve efficiency and reduce downtime.
• Source specialized fluid-system components and high-pressure fittings for infrastructure projects and facility build-outs.

Requirements

• Bachelor’s degree in mechanical engineering, aerospace engineering, or a similar discipline.
• At least 2 years of facilities engineering, factory engineering, launch/ground systems engineering, or similar experience.
• Strong understanding of fluid mechanics, thermodynamics, and heat transfer from first principles.
• Hands-on ability to troubleshoot and repair complex mechanical and fluid systems.
• Ability to work onsite in Hawthorne five days per week.

Nice to have

• Experience with EHS practices, high-pressure gas safety under NFPA 55, and metal powder handling.
• Proficiency with 3D CAD software such as SolidWorks or NX.
• Experience scaling automated manufacturing lines or developing high-volume production infrastructure.
• Experience with PLCs, industrial automation controls, or building management systems.
• Experience with aerospace ground support, rocket engine test sites, cryogenic systems, facility build-outs, MEP contractors, ITAR, ISO 9001, or metal additive manufacturing.

Culture & Benefits

• Inclusive, collaborative, learning-oriented culture with data-driven decision-making.
• Significant stock option package and employer-paid medical, dental, and vision insurance.
• 401(k), life insurance, paid vacation, sick leave, company holidays, and paid parental leave.
• Relocation assistance, catered lunch and dinner, flexible work hours, and regular team-building events.