Scale By the Bay 2019 is held on November 13-15 in sunny Oakland, California, on the shores of Lake Merritt: https://scale.bythebay.io. Join us! ----- In this talk Neville presents how Scala Macros can be used to improve data pipeline code levering Parquet, Avro, Scalding and Spark. Neville has been working at Spotify for 4 years now and is a member of the music recommendation team. He also lea