Top Kotlin Developer Jobs in 2025: Trends and Salaries

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Top Kotlin Developer Jobs in 2025: Where to Grow and How Much to Earn

Kotlin has firmly established itself in the top three fastest-growing languages of the JVM ecosystem. In 2025, demand for Kotlin developers has not only remained strong but has also expanded beyond mobile development. Companies are increasingly choosing Kotlin for backend, cross-platform solutions, and even Data Engineering. In this article, we break down the top 5 most in-demand directions for Kotlin specialists, current salaries, and key skills.

1. Android Developer (Kotlin) — A Classic That Never Gets Old

Google has officially made Kotlin the number one language for Android, and in 2025, this direction remains the most popular. Middle and Senior Android developer positions account for about 45% of all Kotlin job offers.

Average salary: Middle — 250–350 thousand RUB, Senior — 400–550 thousand RUB.
Key skills: Jetpack Compose, Coroutines, Flow, Dagger/Hilt, MVVM, Clean Architecture.
Trend: More projects are migrating to Compose Multiplatform, opening the path to iOS development without Swift.

2. Backend Developer (Ktor / Spring Boot)

Kotlin is actively replacing Java in microservice architecture. The Ktor framework is gaining popularity due to its lightness and asynchronicity, while Spring Boot with Kotlin modules remains the standard for enterprise projects.

Average salary: Middle — 300–400 thousand RUB, Senior — 450–600 thousand RUB.
Key skills: Ktor, Exposed, Spring Data, Kafka, PostgreSQL, Docker, Kubernetes.
Trend: Growing demand for specialists who can combine Kotlin with coroutines and reactive streams.

3. Kotlin Multiplatform (KMP) / Cross-Platform Developer

Kotlin Multiplatform Mobile (KMM) has been renamed to Kotlin Multiplatform, and it is now not just a mobile platform. Companies are looking for engineers capable of writing shared code for Android, iOS, web, and desktop.

Average salary: Middle — 280–370 thousand RUB, Senior — 420–550 thousand RUB.
Key skills: Compose Multiplatform, expect/actual mechanism, SQLDelight, Ktor Client, Gradle Multiplatform configuration.
Trend: Kotlin/Wasm and Kotlin/Native for web workers — a niche but highly paid expertise.

4. Kotlin for Data Engineering and Analytical Pipelines

A new direction that is actively gaining momentum. Kotlin is used for writing ETL processes, working with Apache Spark (via the Kotlin API), and building high-load analytical services.

Average salary: Middle — 300–380 thousand RUB, Senior — 450–600 thousand RUB.
Key skills: Arrow (functional programming), Spark Kotlin DSL, coroutines for I/O, knowledge of the Hadoop ecosystem.
Trend: Kotlin is becoming an alternative to Python for tasks where performance and typing are critical.