Staff Engineer, Sensor Fusion & Localization

At ARX Robotics, you will help advance the autonomy stack of next-generation unmanned ground vehicles. As a Staff Engineer - Sensor Fusion & Localization, you will develop core state estimation and sensor fusion systems that enable robots to understand their position and motion in complex, GPS-denied environments.

You will work across autonomy, perception, hardware, and software teams to integrate advanced algorithms into a cohesive and reliable platform for real-world deployment. Your contributions will directly influence how autonomous and teleoperated systems operate in demanding field conditions where.precision, robustness, and low latency are critical.

What You'll Build

• Develop advanced sensor fusion and state estimation algorithms for robust localization in GPS-denied environments
• Implement and improve methods such as EKF, UKF, particle filters, and nonlinear observers for state estimation and factor graph-based SLAM methods
• Fuse and synchronize data from cameras, LiDAR, radar, IMUs, GNSS, magnetometers, and barometers into reliable real-time state estimates
• Design low-latency, real-time processing pipelines for autonomous robotic systems
• Build and refine localization performance through simulation, controlled testing, and real-world validation under degraded sensing conditions
• Collaborate closely with hardware and software teams to ensure accurate calibration, synchronization, and system integration
• Prototype, evaluate, and deploy new multi-sensor fusion and estimation approaches
• Debug and resolve complex issues across sensor data, calibration, and estimation pipelines
• Contribute to resilient GPS-denied navigation capabilities for autonomous ground vehicles

Do you have experience in Python?, Do you have a Master's degree?, * Advanced degree (MSc or higher) in Robotics, Computer Vision, Electrical Engineering, or a related field

• Strong C++ development skills with experience debugging complex robotics systems
• Deep expertise in sensor fusion and state estimation methods, including EKF, UKF, particle filters, and nonlinear estimation techniques
• Solid understanding of inertial navigation and visual-inertial concepts
• Hands-on experience integrating and calibrating multi-sensor systems (LiDAR, camera, IMU, GNSS, radar)
• Strong foundation in linear algebra, probability theory, and 3D geometry
• Experience working with ROS2 and simulation environments for algorithm development and validation
• Familiarity with Linux-based development workflows, CI/CD pipelines, and modern robotics software practices
• A structured, self-driven approach with strong problem-solving and debugging skills in complex systems
• Experience with Python, CUDA or edge computing platforms are beneficial
• Familiarity with ML frameworks such as PyTorch, TensorRT, or vision libraries like OpenCV are a plus
• 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.

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

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.