Challenges of large-scale sensor data processing for autonomous vehicle development, testing and validation using ROS (Robot Operating System). In the presentation, we will show insights from using frameworks for large-scale data processing and distributed applications running on-premise clusters and in the cloud. We will share our experiences and lessons learned on accelerating the end-to-end engineering process from data ingest and catalog to analysis, development and safety validation. Keywords: Big Data, Data Science, Data Engineering, Deep Learning, Safety Validation, Testing, Automotive R&D