Senior Robotics Engineer - State Estimation, VIO & Sensor Fusion

<h2>About Promethion Industries</h2><p>Promethion Industries is a European defence technology company building autonomous supremacy systems for aerial and multi-domain operations. Our mission is to enable decisive autonomy for NATO-aligned forces through tightly integrated autonomy stacks designed and built in Europe. Our focus is defensive and counter-system capabilities, including anti-UAS and resilient autonomy under contested conditions. </p><h3>We are looking for a Senior Robotics Engineer - State Estimation, VIO & Sensor Fusion to build the estimation backbone that allows our aircraft to understand their own motion without depending on GNSS.</h3><h2><strong>Your mission with us</strong></h2><ul><li><p>Build the state-estimation and sensor-fusion backbone of our autonomous aerial systems.</p></li><li><p>Develop robust vehicle-state estimation for high-dynamic flight and GNSS-degraded or GNSS-denied environments.</p></li><li><p>Fuse IMUs, cameras, optical flow, airspeed, GNSS, barometers and other sensors into reliable low-latency estimates.</p></li><li><p>Develop, integrate and deploy VIO, visual odometry, ego-motion optical flow and inertial-estimation approaches.</p></li><li><p>Own temporal calibration, sensor synchronisation, coordinate frames and estimator consistency.</p></li><li><p>Diagnose drift, bias, observability and timing problems from first principles.</p></li><li><p>Work directly with real flight logs and hardware to reproduce estimator failures and rapidly improve performance.</p></li><li><p>Build graceful degradation when individual sensors become unreliable or unavailable.</p></li><li><p>Quantify estimator uncertainty and expose meaningful confidence and health information to downstream autonomy and control systems.</p></li><li><p>Evaluate alternative estimation architectures including direct velocity estimation and continuous-time approaches where they provide advantages at high dynamics.</p></li></ul><h2><strong>Your contribution to the team <em>(required)</em></strong></h2><ul><li><p>Strong practical experience in robotics state estimation, localization or inertial estimation.</p></li><li><p>Deep understanding of IMU-based estimation and multi-sensor fusion.</p></li><li><p>Strong experience with EKF, error-state filtering or comparable nonlinear-estimation techniques.</p></li><li><p>Practical experience with VIO, visual odometry, optical flow or closely related systems.</p></li><li><p>Strong understanding of rigid-body transformations and coordinate frames.</p></li><li><p>Strong C++ skills.</p></li><li><p>Experience deploying estimators onto real robots or vehicles.</p></li><li><p>Strong understanding of sensor calibration and time synchronization.</p></li><li><p>Experience analyzing raw sensor data, logs and estimator performance.</p></li><li><p>Ability to work with high-rate, noisy and imperfect real-world measurements.</p></li></ul><h2><strong>Big plus</strong></h2><ul><li><p>High-speed UAV or fixed-wing experience.</p></li><li><p>GNSS-denied flight.</p></li><li><p>PX4 estimator experience.</p></li><li><p>ROS2.</p></li><li><p>GTSAM / Ceres / Eigen.</p></li><li><p>Event-camera VIO or optical flow.</p></li><li><p>Continuous-ti