Have you used Kotlin? Do you have experience?

Yes, I have experience developing in Kotlin. I used it for creating backend services and Android applications. I appreciate Kotlin for its conciseness, type safety, and advanced features for working with collections and coroutines for asynchronous programming.

For example, in one of my projects, I implemented a REST API using Ktor and Kotlin Coroutines, which allowed me to write efficient and readable asynchronous code:

suspend fun fetchUserData(userId: String): User {
    return httpClient.get("https://api.example.com/users/$userId")
}

I also used Kotlin DSL for build configuration and testing, which simplified project maintenance.