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Guidance, Navigation, & Control (GNC) Engineer II Verified today

CesiumAstro · Austin, TX · Space Systems · first seen 2026-08-06

About the role

You will work on a small team designing and analyzing GNC systems for CesiumAstro satellites and payloads. You own Guidance, Navigation, and Control through all stages of design, integration, test, and operations. Your work includes trade studies, design reviews, modeling, simulations, system testing, and hands-on hardware build and flight.

In a startup environment, expect to contribute to company-critical projects outside your core area of expertise.

Key requirements

  • Master of Science (MS) or Doctorate (Ph.D.) in Aerospace Engineering from an accredited institution
  • 2 years of internship, research, or industry experience in satellite attitude and orbit systems
  • Expertise in attitude estimation, guidance, and control; coordinate frame transformations; linear algebra; and non-linear systems
  • Experience with multiple spaceflight missions from concept to operations
  • Experience in low Earth orbit satellites
  • Experience with post-CDR test failures and on-orbit failures that inform your design and test philosophies
  • Experience recovering from on-orbit failures
  • Experience in conceptualization, architecture design, requirements specification, design, test, and operations of GNC architectures and components
  • Familiarity with space mission simulation tools such as STK, Basilisk, GMAT, or FreeFlyer
  • Experience defining spacecraft trajectories and orbital requirements
  • Fluency with Python and C++, or other modeling languages
  • Familiarity with spacecraft mission design including events, pointing modes, maneuver planning, and operations
  • Excellent written and verbal communication skills

Preferred experience

  • CubeSat and SmallSat experience
  • Hands-on experience with spacecraft instrumentation, subsystems, and test labs
  • Experience with multiple mission simulation and flight architectures
  • Experience in LEO, MEO, GEO, and deep space satellites
  • Experience with communications satellites

Compensation and benefits

Full-time employment offers include company stock options and a benefits package: health, dental, vision, HSA, FSA, life, disability, and retirement plans.

GNC Engineer II at CesiumAstro | Flight Proven Space