Propulsion Engineer (Aerospace)

Location: Onsite in Mojave, California, United States. Travel to supplier facilities and test ranges is required, estimated at 15–30%.

Base salary: $120,500–$158,000 annually for Senior level or $157,000–$206,000 annually for Staff level.

Company

hirify.global develops reusable air-launched Talon testbeds and operationally realistic flight-testing platforms for hypersonic technology.

What you will do

• Lead requirements and interface management for solid rocket motor systems across design, development, testing, assembly, integration, and flight operations.
• Serve as the SRM Responsible Engineer and oversee supplier activities, progress, technical reviews, and requirements compliance.
• Analyze post-test data and collaborate with the supplier to interpret results and resolve technical challenges.
• Develop propulsion performance models supporting guidance, navigation, and control.
• Perform ballistics and thermal analyses and support the specification and design of ground support equipment.
• Coordinate SRM deliveries, inspections, installation, and flight-test operations while communicating with the hypersonic vehicle propulsion lead.

Requirements

• Senior level: bachelor’s degree and 5–10 years of engineering experience; Staff level: bachelor’s degree and 10–20 years of engineering experience, or equivalent experience.
• Experience designing, developing, testing, and operating solid rocket motors.
• Knowledge of solid rocket motor manufacturing, including composite case winding and propellant mixing, pouring, and casting.
• Experience with supplier management, aerospace systems integration, and post-test data analysis.
• Experience with Solid Performance Program and/or Chemical Equilibrium with Applications, plus scientific coding in Python, MATLAB, Simulink, or C/C++.
• Ability to communicate technical challenges clearly, work independently, and adapt to changing priorities.

Nice to have

• Rocket motor sizing, configuration trade studies, ballistics, thermal or combustion modeling.
• Aerospace-grade hardware, mechanical design, ASME Y14.5, explosives handling, or ground-test hardware experience.
• Experience with component or subsystem test planning and execution.
• CAD experience with NX, CATIA, or SolidWorks and experience specifying or designing ground support equipment.

Culture & Benefits

• 9/80 work schedule.
• Medical, dental, vision, and prescription drug healthcare coverage.
• Paid maternity and parental leave.
• 50% company match per contributed dollar into a 401(k), up to $11,500.
• Tuition reimbursement.