Mechanical Systems Engineer (Fluid Systems)

Location: San Francisco, United States

Salary: $135K–$170K per year

Company

hirify.global is a vertically integrated aerospace company developing a scalable technology platform for critical infrastructure, mission operations, and the future of flight.

What you will do

• Own the lifecycle of vehicle fluid systems, including fuel, hydraulics, pneumatics, lubrication, and thermal management.
• Perform pressure-drop, flow-sizing, transient-behavior, and failure-mode analyses to guide system architecture and design decisions.
• Design and integrate pumps, valves, accumulators, heat exchangers, plumbing, sensors, and other fluid-system components.
• Collaborate with propulsion, structures, avionics, controls, manufacturing, and suppliers on system integration and component qualification.
• Develop test plans and support component testing, system validation, prototyping, vehicle builds, ground testing, and flight-test campaigns.
• Lead technical reviews, produce engineering documentation, and contribute to safety and hazard analyses.

Requirements

• Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related field.
• 2–5+ years of experience designing, integrating, or testing fluid or mechanical systems; internships and student projects count.
• Strong knowledge of fluid mechanics, thermodynamics, and mechanical-system fundamentals.
• Experience with requirements flow-down, interfaces, failure modes, and operational considerations.
• Proficiency with 3D CAD tools such as NX, CATIA V5, SolidWorks, or similar.
• Hands-on hardware experience with plumbing, assembly, instrumentation, or testing, plus willingness to travel to test sites and support field operations.

Culture & Benefits

• Work in a fast-moving aerospace development environment.
• Build systems from early concept through detailed design, qualification, and flight testing.
• Collaborate across engineering, manufacturing, supplier, and test functions.
• Support vehicle development in demanding and extreme operating conditions.