— Technology we master

Kotlin

The modern JVM language, official for Android development.

Kotlin is Google's recommended language for Android: interoperable with Java, more concise and safer (null-safety, coroutines). Beyond mobile, it also serves server-side (Ktor, Spring) and cross-platform via Kotlin Multiplatform.

[ Why Kotlin ]

What Kotlin brings to your project.

Typical use cases: Native Android applications, JVM backends, shared multiplatform code.

  1. 01

    Null-safety and strict typing: fewer production crashes.

  2. 02

    Coroutines: readable and structured async concurrency.

  3. 03

    Total interoperability with Java and the JVM ecosystem.

  4. 04

    Jetpack Compose: modern declarative Android UI.

[ Team ]

Entrust your project
to our experts.

Our experts build your project, delivering superior technical and functional quality within shorter timeframes.

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15
Experts
100+
Projects delivered
78%
Loyal clients
4.9/5
Average rating
[ 200+ Projects ]

They trust us.

Startups, mid-caps, large enterprises, public sector: Kosmos supports organisations of every size in building their web, mobile and AI applications.

[ Press ]

They talk about us.

Explore the mentions and analyses that spotlight our work and our innovations across the business and tech press.

Free quote · no commitment

A project in Kotlin?

Describe your project. Our team replies within 24 hours with free technical scoping, along with a clear estimate of costs and timelines. No commitment.

  • Reply within 24 hours from a project manager
    or engineer.
  • Technical scoping and quote, with no fees.
  • No commitment, your data stays
    confidential.
Quick estimate

Free scoping & estimate in less than 24h

Describe your project and we'll get back to you with a costed estimate and a roadmap.

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