Principal GNSS Systems Engineer, Amazon LEO
The successful candidate will lead the design and delivery of a custom satellite-based wireless positioning and timing transfer service operating across S-Band and L-Band frequencies. This system will transmit simultaneous multi-source signals that ground terminals can receive, correlate, and process to extract carrier phase differentials, enabling high-accuracy ranging, time delta computation, and precise geolocation. The role demands mastery of both the theoretical underpinnings of GNSS — including relativistic time corrections, ionospheric and tropospheric propagation modeling, and CDMA spreading code correlation — and the practical engineering required to implement real-world satellite communication subsystems. This position sits at the intersection of satellite communications engineering, precision time and frequency, and advanced signal processing. The engineer will own the GNSS subsystem architecture end-to-end, contribute to the TT&C subsystem, and serve as the technical authority on all matters related to satellite-based PNT service design, clock disciplining, and time transfer over wireless and optical physical mediums.
Key job responsibilities
The Senior GNSS Systems Engineer will serve as the technical lead and subsystem owner for the spacecraft GNSS architecture, driving all aspects of design from initial requirements definition through hardware acceptance.