Alt-PNT Research Engineer

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About this role

Alt-PNT Research Engineer Remote, United States About Us: Swan delivers the future of defense and industry through scalable autonomous products. Swan is backed by leading defense VCs including a16z's American Dynamism fund. Role Overview: We are seeking an Alternative Positioning, Navigation, and Timing (Alt-PNT) Research Engineer with deep expertise in GPS-denied navigation, signals of opportunity (SoOP), radio SLAM, and inertial navigation systems (INS). The ideal candidate will have a strong background in designing and developing resilient PNT solutions using diverse sensing modalities, including RF signals, vision-based navigation, and sensor fusion techniques. This role requires experience in signal processing, Bayesian filtering, multi-sensor fusion, and robust estimation methods to enable navigation in GPS-challenged or denied environments. Key Responsibilities: - Research, design, and develop alternative PNT solutions leveraging signals of opportunity (Wi-Fi, cellular, LEO satellites, GNSS backups, etc.), radio SLAM, and inertial navigation. - Implement and optimize sensor fusion algorithms integrating IMU, LiDAR, radar, barometers, magnetometers, and RF-based positioning. - Develop robust navigation algorithms based on Kalman filtering, factor graphs, and particle filtering for real-time applications. - Work on radio-based navigation techniques, including time-difference-of-arrival (TDOA), frequency-difference-of-arrival (FDOA), and Doppler-based positioning. - Design and implement signal processing techniques for extracting positioning information from RF signals, including waveform analysis and multipath mitigation. - Conduct real-world testing and data collection campaigns to validate and refine PNT solutions. - Write clean, efficient, and well-documented code in Python and C++, with experience in simulation environments such as MATLAB, GNU Radio, or SDR-based platforms. - Collaborate with cross-functional teams,

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