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Zone 5 Technologies

Propulsion Engineer IV

United StatesFrom $175kmidAdded today

About this role

Zone 5 Technologies seeks a Propulsion Engineer IV to design, analyze, and test propulsion systems for unmanned aircraft and tactical systems. You'll work across the product lifecycle—from concept through production—collaborating with airframe, guidance, systems, and manufacturing teams to ensure reliable performance under demanding flight conditions.

What you'll do

  • Design and analyze propulsion systems (solid, liquid, hybrid) from concept through qualification across multiple programs
  • Perform internal ballistics, structural, and thermal analysis of motor cases, nozzles, propellant grains, and igniters
  • Develop and validate propulsion performance models including thrust profiles, specific impulse, and motor integration effects
  • Contribute to vehicle-level design and multidisciplinary design optimization (MDO) with propulsion models and trade studies
  • Support static fire, hot fire, and flight test campaigns including planning, instrumentation, and data reduction
  • Advise design engineers on propulsion hardware approaches and contribute to propulsion design standards

What they're looking for

  • Solid rocket motor design and analysis
  • Internal ballistics and performance modeling
  • Structural and thermal analysis (FEA/CFD)
  • Propellant grain and nozzle design
  • Test planning and instrumentation
  • Multidisciplinary design optimization (MDO)
  • Systems integration and requirements analysis
  • MATLAB, ANSYS, or equivalent simulation tools
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Zone 5 Technologies

Zone 5 Technologies designs and manufactures unmanned aircraft systems and UAVs, focusing on advanced avionics integration and autonomous flight technologies. The company is hiring Systems Integration & Test Engineers, Systems Engineers, and Continuous Improvement Engineers to develop Hardware-in-the-Loop environments, optimize manufacturing processes, and validate next-generation unmanned aircraft systems.

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Likely interview questions

  • Walk us through your experience designing or analyzing solid rocket motor systems—what were the key performance drivers?
  • Describe a time you performed internal ballistics analysis; what tools did you use and what challenges did you encounter?
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