Auto Trader is the UK's leading digital automotive marketplace. They receive 60 million cross-platform visits each month. Interpreting the vast quantity of data we collect is essential for their success and the success of their customers. Three years ago, Auto Trader started building a new cloud-based data platform. Their mission was to empower the company and their customers to make informed data-driven decisions, by democratizing access to data and promoting a self-serve platform. They wanted to increase their capability for complex analyses and data-science-led data products, while making it easier than ever before for new users to access the data they need. Edward Kent will walk you through the architecture of Auto Trader's multi-cloud data platform and the various tools they are using to fulfill this mission, including AWS S3, Apache Spark, Databricks, Google BigQuery, and Looker.