Mobile Developers
Kotlin Developers on Demand
Kotlin developers who write idiomatic, concise code for Android, shared multiplatform logic and server-side services.
Overview
Hire Kotlin Developers
Kotlin is Google's preferred language for Android and also runs on the JVM for backend work and, through Kotlin Multiplatform, can share business logic between Android, iOS and other targets. Skilled Kotlin developers use null safety, data classes, sealed types, extension functions and coroutines to write code that is shorter and safer than equivalent Java.
Our Kotlin developers build Android apps, convert Java modules, and design shared logic for multiplatform projects where it fits. On the server they may use Ktor or Spring Boot. Because coroutines and Flow can be misused, they bring discipline around cancellation, error handling and thread dispatching, which matters for apps that stay stable under real conditions.
Context
When to hire
- 01
Java code is slowing you down
Gradual conversion to Kotlin reduces boilerplate and null-related crashes.
- 02
You want to share logic across platforms
Kotlin Multiplatform can share networking and business rules while keeping native interfaces.
- 03
Coroutine code is hard to reason about
Poor structure leads to leaks and races that experienced developers can sort out.
- 04
You run JVM services
Kotlin works with existing Java libraries and can modernize a backend gradually.
Capabilities
Skills you get
- 01
Idiomatic Kotlin
Null safety, sealed classes, extension functions and clear, concise code.
- 02
Coroutines and Flow
Structured concurrency, cancellation and reactive streams.
- 03
Android development
Jetpack Compose, ViewModel and Room within Kotlin-first architecture.
- 04
Kotlin Multiplatform
Shared modules for networking, storage and business logic across platforms.
- 05
Server-side Kotlin
Ktor or Spring Boot services that interoperate with Java libraries.
Typical work
- Converting Java modules to Kotlin
- Sharing logic via Kotlin Multiplatform
- Refactoring coroutine-heavy code
- Building Ktor or Spring Boot APIs
- Modernizing an Android codebase
Tools they use
- Kotlin
- Coroutines
- Jetpack Compose
- Kotlin Multiplatform
- Ktor
- Spring Boot
- Gradle
- JUnit
Approach
How hiring works
- 1
Share your needs
Tell us about your project, stack, team setup and the skills you are looking for.
- 2
Review the match
We suggest developers whose experience fits, and you can talk with them before deciding.
- 3
Onboard
Access, tools, communication channels and working hours are agreed up front.
- 4
Build & review
Work runs in your process with regular updates, and the team can scale as needs change.
FAQs
Common questions
Have a question that is not covered here? Get in touch.
Is Kotlin Multiplatform production-ready?
Teams do use it in production, particularly for shared business logic. Fit depends on your app and team, and we will discuss the trade-offs candidly.
Can Kotlin and Java coexist in our app?
Yes, they interoperate well, so migration can happen file by file.
Do you also build the backend?
Where it suits the project, our Kotlin developers can build services alongside the app.
Let's build what's next
Tell us about your idea, product or legacy system. Send us a message and we will help you scope the right next step.