PNT Ground Segment Engineer

必須

• Experience designing, developing, evaluating, or operating GNSS/PNT ground systems, satellite ground systems, RF monitoring systems, or similar infrastructure
• Knowledge of navigation measurements and performance evaluation, including pseudorange, carrier phase, Doppler, satellite orbit, and clock information
• Experience integrating hardware, software, communications, and data-processing systems
• Ability to coordinate and collaborate with domestic and overseas partners, for both equipment and hosting

歓迎

• Experience designing or operating GNSS reference-station or monitoring-station networks
• Experience with precise orbit determination, clock estimation, time synchronization, or PNT monitoring systems
• Experience analyzing navigation signals using GNSS receivers, software-defined radios, or RF measurement equipment
• Experience developing real-time data-processing, visualization, alerting, or cloud-based monitoring systems
• Knowledge of frequency coordination, radio-station licensing, site installation, or remote ground-station operations
• Willingness to work in a Japanese-language environment for technical documentation and communication

求める人物像

• Ability to connect monitoring-station design and measurement performance to system-level PNT requirements
• Ability to work across RF, navigation, timing, networking, software, and operations disciplines
• Ability to independently coordinate with equipment manufacturers and partners and resolve technical issues

使用ツール

Job Overview

• This position is responsible for the design and development of the ground segment and monitoring infrastructure supporting LEO-PNT (Low Earth Orbit Positioning, Navigation, and Timing) and LNSS (Lunar Navigation Satellite System).
• Through the design of monitoring-station networks, integration of navigation receivers and timing equipment, and development of data-processing and monitoring systems, you will support the evaluation of satellite orbit, clock, signal, and overall service performance.

Specific Responsibilities

• Design and develop PNT ground-segment and monitoring-station architectures
• Design monitoring-station locations, equipment configurations, communications links, and data flows
• Integrate antennas, navigation receivers, RF equipment, timing references, and data-acquisition systems to build a monitoring/reference station
• Develop systems for collecting, processing, storing, and visualizing monitoring data
• Analyze satellite orbit, clock, signal, positioning, integrity, continuity, and availability performance
• Design station calibration, redundancy, failure recovery, and operational procedures
• Conduct technical coordination with equipment manufacturers, ground-station operators, research institutions, and domestic and international partners

Role Opportunities

• Play a central role in developing the ground infrastructure supporting LEO-PNT and LNSS services
• Gain experience across RF systems, precision timing, navigation monitoring, communications networks, and data processing
• Work directly with real navigation signals and in-orbit satellite data
• Lead technical coordination with equipment manufacturers and ground-station partners
• Opportunities to collaborate with government and international partners, including space agencies, universities, and research institutions
• Opportunities to participate in and present at international conferences and to publish research

Tools Used

• OS: Windows, Linux
• PNT and RF equipment: Navigation receivers, software-defined radios, spectrum analyzers, frequency counters, and related measurement equipment
• Timing infrastructure: GNSS-disciplined oscillators, atomic frequency standards, PTP, White Rabbit, and NTP
• Positioning and navigation analysis: RTKLIB and other GNSS/PNT analysis tools
• Simulation and analysis: Python, MATLAB, etc.
• Code management: GitHub
• Task management: GitHub Projects V2 / GitHub Issues
• AI: ChatGPT Business/Codex, Gemini, NotebookLM Plus, Claude Code, GitHub Copilot, Cognition Devin
• Version control: Git
• PC: Provided based on personal preference