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Cesium Astro

Guidance, Navigation, & Control (GNC) Engineer II

Austin, TXfull-timemidAdded yesterday

About this role

CesiumAstro seeks a GNC Engineer II to design and analyze guidance, navigation, and control systems for satellites and aerospace communication platforms. You'll own GNC development across the full lifecycle—from design through operations—including trade studies, modeling, testing, and hardware integration on a startup team.

What you'll do

  • Design and analyze GNC systems for satellites and payloads across all development phases
  • Perform trade studies and participate in design reviews for spacecraft control architectures
  • Develop models, simulations, and conduct system-level testing and validation
  • Build, test, and support flight hardware integration and operations
  • Contribute to company-critical projects outside primary GNC focus area
  • Support spacecraft launch and on-orbit operations

What they're looking for

  • Guidance, Navigation, and Control (GNC) systems design
  • Spacecraft attitude determination and control
  • MATLAB/Simulink or equivalent modeling tools
  • Systems engineering and trade study analysis
  • Hardware integration and test procedures
  • Orbital mechanics and dynamics
  • Requirements analysis and design documentation
  • Cross-functional collaboration in fast-paced environments
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Cesium Astro

Cesium Astro develops advanced hardware and systems for aerospace applications including satellites, UAVs, and rocket propulsion platforms. The company is hiring for specialized engineering roles including FPGA engineers, wire harness designers, turbomachinery engineers, and software project engineers to support its satellite and spacecraft development.

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Likely interview questions

  • Walk us through a GNC system you've designed or analyzed—what were the key trade-offs you evaluated?
  • How have you approached attitude control or stabilization for a spacecraft or aerial platform?
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