[Remote] State Estimation Engineer (C++/Sensor Fusion/PNT) (R3881)

Note: The job is a remote job and is open to candidates in USA. Shield AI is a venture-backed deep-tech company dedicated to protecting service members and civilians through intelligent systems. The Senior State Estimation Engineer will be responsible for designing, developing, and deploying advanced navigation and state estimation algorithms within the Hivemind SDK, ensuring robust performance in GPS-denied environments. Responsibilities • Research and develop state-of-the-art state estimation and navigation algorithms to enable resilient autonomy in challenging GPS-denied environments. • Design and deploy production-grade C++ software for embedded robotic systems operating in dynamic, real-world environments. • Build and maintain rigorous unit, integration, and system-level tests to ensure system robustness and safety. • Develop and enhance modeling, calibration, and simulation tools for inertial and vision-based navigation systems. • Contribute to roadmap planning, feature decomposition, and agile execution alongside a multidisciplinary team of autonomy engineers. • Continuously enhance performance analysis, benchmarking, and validation pipelines to drive rapid innovation and improvement. Skills • M.S. in Aerospace Engineering, Electrical Engineering, Robotics, Computer Science or a related field; Minimum 2+ years of related professional work experience if you have an M.S degree or 0 years if you have a new Ph.D graduate. • Professional proficiency in modern C++ (C++11 or newer) and strong object-oriented design skills. • Hands-on experience deploying low-latency C++ applications to embedded Linux platforms. • Professional experience designing and implementing state estimation algorithms (e.g., EKF, UKF, Graph-based optimization). • Familiarity with VIO, SLAM, or multi-sensor fusion frameworks (e.g., gtsam, Ceres, OpenVINS). • Strong working knowledge of CI pipelines and automated testing frameworks for C++. • Ability to independently deploy high-reliability code suitable for real-world autonomous systems. • Familiarity with prototyping in Python or MATLAB is welcome, but this role demands professional C++ production deployment skills. Candidates whose primary experience is in MATLAB or Python are unlikely to find this position a good fit. • Deep understanding of graph-based optimization for state estimation. • Experience developing vision-aided inertial navigation systems (VINS, VIO). • Experience with navigation sensor calibration (IMU, GPS, barometers, magnetometers, laser altimeters). • Experience in benchmarking and system validation for real-world navigation performance. Benefits • Bonus • Benefits • Equity • Temporary benefits package (applicable after 60 days of employment) Company Overview • Shield AI is a deep-tech company that focuses on developing AI-powered systems to enhance the safety of service members and civilians. It was founded in 2015, and is headquartered in San Diego, California, USA, with a workforce of 501-1000 employees. Its website is http://www.shield.ai. Company H1B Sponsorship • Shield AI has a track record of offering H1B sponsorships, with 2 in 2025, 3 in 2024, 1 in 2021. Please note that this does not guarantee sponsorship for this specific role.