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Firefly AerospacePosted 1 month ago

GNC Engineer II, Hypersonics

On-siteCedar Park, Texas, United States

Full TimeBachelors DegreeStartup

Job Summary

Develop and validate GNC software to ensure successful launch vehicle mission execution, tuning attitude determination and control algorithms for all flight phases. Perform 6DOF dynamic analysis of ascent trajectories, create tools to automate workflows, and conduct stability studies under nominal and off-nominal conditions. Serve as a GNC console operator for launch operations, perform post-flight analysis, and interface with cross-discipline teams to integrate software with vehicle hardware. Author technical documentation and reports while building proficiency in simulation models, sensors, and actuators.

Required Qualifications

  • Bachelor's degree in aerospace engineering, mechanical engineering, electrical engineering, physics, mathematics, computer science, or related field
  • 2-5 years of professional experience in aerospace guidance, navigation, and control, or related technical discipline
  • Understanding of launch vehicle flight mechanics and attitude dynamics
  • Familiarity with numerical simulation techniques, integration methods, and modeling of dynamic systems
  • Experience with Python for scripting, data analysis, and visualization
  • Familiarity with C++ for real-time or flight-critical applications
  • Understanding of software development best practices including version control (Git), code documentation, and testing
  • Strong written and verbal communication skills

Desired Qualifications

  • Advanced degree (master's or PhD) in aerospace engineering or related field with focus on GNC, flight mechanics, or controls
  • Experience supporting launch vehicle GNC across development, integration, and flight
  • Proficiency in C++ for embedded systems or real-time applications
  • Knowledge of state estimation techniques including Kalman filtering, sensor fusion, and covariance analysis
  • Knowledge of numerical optimization and targeting methods applied to trajectory design
  • Familiarity with modern flight software frameworks and real-time operating systems
  • Familiarity with CI/CD workflows and automated testing practices
  • Experience with Linux development environments and command-line tools
  • Exposure to spaceflight mission operations or launch campaigns

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