With hundreds of developers and millions of lines of code, Databricks is one of the larger Scala shops around. This talk will cover everything about Scala at Databricks: from its inception, to usage, style, tooling, and the problems we face. We will cover topics ranging from cloud infrastructure, to bespoke language tooling, to the human processes around managing our large Scala codebase. From this talk, you'll learn about everything big and small that goes into making Scala at Databricks work, a useful case study for anyone supporting the use of Scala in a growing organization.