Kotlin

Kotlin is a modern, statically typed programming language created by JetBrains that runs on the Java Virtual Machine and can also compile to native code via Kotlin/Native or to JavaScript via Kotlin/JS. It is fully interoperable with Java, allowing developers to reuse existing libraries and frameworks while benefiting from a more concise syntax.

The language is widely used for Android app development, server‑side applications with frameworks such as Ktor and Spring Boot, and for multiplatform libraries that share code between mobile, web and backend systems. Its strengths include null‑safety, coroutine‑based asynchronous programming, type inference and strong tooling support in IDEs like IntelliJ IDEA and Android Studio.

At Dev48 Kotlin is employed for building Android clients, delivering reliable and maintainable mobile experiences. On the backend we use Kotlin with Ktor or Spring to create APIs, integrate payment gateways and AI services, and deploy the resulting services to cloud platforms such as AWS, GCP and Azure. For projects that require common business logic across client and server sides, we leverage Kotlin Multiplatform to reduce duplication and streamline updates.