DoorDash uses Kotlin for all their backend services and infrastructure. Hundreds of engineers work with Kotlin across a massive system spanning multiple repos.
Two years ago, they made the bold move to split their existing legacy Python monolith into multiple backend services, which they developed in Kotlin. This upgrade resulted in tremendous improvements:
Better software performance.
Сleaner code.
Easier code reviews.
Another great thing about Kotlin is that people coming from Java, Golang, and Python find it really easy to get started.
Kotlin is an excellent choice for server-side appl