Senior Mechanical Engineer (Site Infrastructure) (AI Manufacturing)

Location: Los Angeles, California; full-time onsite presence required five days a week. The facility is based in Hawthorne.

Salary: $140,000–$200,000 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 mechanical infrastructure for the Skyfall printing platform, 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 industrial utilities in accordance with safety codes.
• Define preventive maintenance for pumps, compressors, HVAC, and other facilities equipment while identifying automation opportunities.
• Secure specialized fluid-system components and high-pressure fittings for infrastructure build-outs and engineering projects.

Requirements

• Bachelor’s degree in mechanical engineering, aerospace engineering, or a similar discipline.
• 5+ years of experience in facilities engineering, factory engineering, launch and ground systems engineering, or a related field.
• 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 for facility layouts, piping routes, and mechanical mounts.
• Experience scaling high-volume production, automated manufacturing lines, or new facilities.
• Experience with PLCs, industrial automation controls, building management systems, MEP contractors, or aerospace ground-support operations.
• Knowledge of ITAR, ISO 9001, metal additive manufacturing, or powder-based industrial processes.

Culture & Benefits

• Inclusive, diverse environment focused on collaboration, learning, and data-driven decisions.
• 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, flexible work hours, catered meals, and team-building events.