Propulsion Engineer IV (Aerospace)

Location: United States. Must be a US Person under ITAR, able to obtain a U.S. DoD Secret security clearance, and authorized to work in the United States.

Salary: $124,000–$175,000 USD per year

Company

hirify.global develops autonomous unmanned aircraft systems and next-generation aerospace and defense flight technologies.

What you will do

• Design and analyze propulsion systems, primarily solid rocket motors, from concept and trade studies through qualification and production.
• Perform internal ballistics, structural, and thermal analysis of motor cases, nozzles, propellant grains, and igniters.
• Develop and validate thrust, specific impulse, and motor integration performance models for vehicle-level design and multidisciplinary optimization.
• Plan and support static fire, hot fire, and flight test campaigns, including instrumentation, data reduction, and anomaly investigation.
• Integrate propulsion subsystems with airframes, avionics, and launch or release mechanisms.
• Advise on hardware fundamentals, manufacturability, sourcing, make-or-buy decisions, and propulsion design standards.

Requirements

• Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related discipline.
• 3+ years of experience in propulsion system design, analysis, or testing across the product lifecycle.
• Working knowledge of solid rocket motor design and proficiency in at least one of internal ballistics, structural analysis, thermal analysis, or nozzle design.
• Familiarity with static or hot fire testing, instrumentation, and data reduction.
• Programming or scripting experience with Python or MATLAB for modeling and data analysis.
• US Person status under ITAR and ability to obtain a U.S. DoD Secret security clearance are required.

Nice to have

• Master’s degree in Mechanical Engineering, Aerospace Engineering, or a related discipline.
• Experience with air-launched weapons, tactical missiles, counter-UAS interceptors, or liquid and hybrid propulsion.
• Experience with energetics handling, transport, range safety, flight testing, or deployed propulsion systems.
• Experience with OpenMDAO, ModelCenter, surrogate modeling, or multidisciplinary design optimization.
• Active U.S. DoD Secret or Top Secret security clearance.

Culture & Benefits

• Competitive total compensation package.
• Medical, dental, vision, life insurance, and other benefit options.
• 401(k) with company match.
• Four weeks of paid time off and 12 annual company holidays.
• Collaborative environment focused on aerospace and defense innovation, professional development, and career advancement.