Staff Engineer, Sensor Fusion & Localization; m​/f​/d

About The Role

AtARX 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 stateestimation andsensorfusion 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 systemsoperatein demanding field conditions where precision, robustness, and low latency are critical.

• Develop advanced sensor fusion andstateestimation 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 ensureaccuratecalibration, 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

• Advanced degree(MScor higher) in Robotics, Computer Vision, Electrical Engineering, or a related field
• Strong C++ development skills with experience debugging complex robotics systems
• Deepexpertisein 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,CUDAor edge computing platformsarebeneficial
• 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 to30 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…