Senior Engineer, Sensor Fusion & Localization (m/f/d)

About The Role At ARX Robotics, you will help build the localization and sensor fusion systems that power autonomous ground vehicles in complex and unpredictable environments. As a Senior Engineer, Sensor Fusion & Localization, you will develop the core technologies that enable robotic platforms to understand their position, movement, and surroundings with high reliability, even in GPS-denied conditions. You will work closely with autonomy, perception, software, and hardware teams to bring advanced robotic systems from development to real-world deployment. Your work will directly contribute to the performance, resilience, and operational effectiveness of autonomous and teleoperated vehicles operating in demanding field environments. What You’ll Build Develop advanced sensor fusion and state estimation algorithms for autonomous ground systems operating in challenging real-world conditions Design and implement localization frameworks using EKF, UKF, particle filters, nonlinear observers, and factor graph-based SLAM methods Fuse and synchronize data from LiDAR, cameras, radar, IMUs, GNSS, magnetometers, and other sensor systems to create robust environmental awareness Build low-latency, real-time data processing pipelines optimized for autonomous robotic platforms Develop reliable localization solutions for degraded or denied GNSS environments Integrate localization and fusion systems with broader autonomy, navigation, and perception stacks Validate algorithms through simulation, controlled testing, and field deployments in dynamic outdoor environments Investigate and resolve complex sensor, calibration, synchronization, and state estimation challenges Prototype and deploy new approaches for multi-sensor fusion and autonomous navigation Contribute to the evolution of robotics, AI, and autonomous system capabilities within a fast-moving defense technology environment What You Bring Advanced academic background (MSc or higher) in Robotics, Computer Vision, Autonomous Systems, or a related engineering field Strong software engineering skills in C++ and experience debugging complex robotics systems Deep understanding of sensor fusion, localization, and state estimation techniques including EKF, UKF, particle filters, and factor graphs Experience working with visual odometry, inertial navigation, and robotics perception systems Hands-on experience integrating and calibrating multi-sensor systems including LiDAR, cameras, IMUs, GNSS, and radar Strong foundation in linear algebra, probability, estimation theory, and 3D geometry Confidence working with ROS2, simulation environments, and robotics validation workflows Experience developing software within Linux-based systems using modern engineering practices, version control, and CI/CD pipelines Curiosity and motivation to build reliable autonomy systems with real operational impact Experience with CUDA or edge computing optimization are beneficial Please note: You do not need to meet every single requirement to apply. We welcome motivated candidates who are eager to grow into the role and develop their expertise further. What We Offer Join a mission-driven European defense tech company at a pivotal stage of growth, where you can help shape meaningful technology, take ownership early, and grow with the business! Competitive compensation package including a bonus opportunity 27 vacation days to start, increasing with tenure up to 30 days Employer-supported pension contribution Learning & development support and team events budget Employee discounts and flexible benefits budget via Probonio Hybrid working setup depending on role and team needs Structured salary bands, levelling framework, and bi-annual development conversations About Us ARX is a dual-use technology company that specializes in developing autonomous unmanned systems and sensors for the European defence sector. Our dual-use unmanned ground systems and sensors assist NATO Armies and civilian first responders in tackling their most challenging problems by providing them with training and information to make better decisions and take effective actions in life-or-death situations. As our team continues to expand rapidly, we are seeking motivated candidates who are excited to work in a highly energetic, creative, and innovative team dedicated to developing autonomous systems for challenging environments. We operate in a dynamic sector where collaboration, sharing innovative ideas, and developing novel problem-solving strategies are ingrained in our work culture. If you are passionate about overcoming challenges that have a real impact on the security of our democracies, apply here to join ARX and help shape the future of dual-use technology! ARX is an equal-opportunity employer, and we encourage candidates from all backgrounds to apply. You can find ARX Robotics Applicant Privacy Policy here .