Design and specify satellite navigation payload systems, document requirements and interfaces, coordinate external contractors, manage development progress, and assess system risks and quality.
About this role
This position develops timekeeping and frequency systems for satellite-hosted positioning payloads supporting LEO-PNT (Low Earth Orbit Positioning, Navigation, and Timing) and LNSS (Lunar Navigation Satellite System). It covers high-stability oscillators, timekeeping control, and synchronization architectures between satellites and ground systems.
Responsibilities include evaluating TCXO, OCXO, RAFS, and Cs/Rb standards; coordinating with manufacturers and procurement agents; designing inter-satellite and satellite-ground comparison methods, PLL and frequency-distribution circuits, and timing protocols such as NTP and White Rabbit. The engineer analyzes frequency stability, phase noise, and Allan deviation, contributes to the payload timing-error budget, and uses Python or MATLAB, precision frequency instruments, Windows/Linux, and Git/GitHub in the listed workflow. The posting says much technical work and company communication is in Japanese and asks international team members to be willing to learn Japanese and communicate across language barriers.
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