Explore how Pinterest manages petabyte-scale data lakes serving over 500 million users through innovative Apache Iceberg solutions on Amazon S3 in this 20-minute conference talk from AWS re:Invent 2025. Discover practical strategies for optimizing storage costs, enhancing query performance, and maintaining data integrity at massive scale. Learn about Pinterest's breakthrough achievements, including significant error reduction through user agent-based access control and hash-based location patterns that deliver tangible business impact through substantial cost savings and performance improvements. Gain insights into critical data management challenges and solutions essential for organizations operating large-scale data operations.