KOTLIN DEVELOPER

Kotlin Developer Portfolio Guide

Modern JVM language. Android's preferred language and beyond.

Demand: HighJunior: $70k - $105k | Mid: $105k - $155k
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Android's Preferred Language

Google recommends Kotlin for Android development. It's also great for backend services and gaining traction for multiplatform development. Modern, concise, and interoperable with Java.

Related Technologies

Jetpack ComposeAndroid SDKKtorCoroutinesFlowRoomGradleSpring Boot

Profile Tips for Kotlin Developers

1

Master Jetpack Compose

Compose is Android's modern UI toolkit. Show you can build declarative UIs with current best practices.

2

Demonstrate Coroutines

Kotlin's coroutines are powerful for async code. Show you understand structured concurrency.

3

Publish Play Store Apps

Published apps are your portfolio. Even simple apps prove you can complete the full development cycle.

4

Show Backend Skills

Kotlin for backend (Ktor, Spring Boot) shows versatility. Full-stack Kotlin developers are valuable.

Project Ideas to Showcase

Android App with Compose

Build a full Android app using Jetpack Compose, Room, and coroutines.

KotlinJetpack ComposeRoomCoroutines

Ktor Backend

Create a REST API using Ktor, showing Kotlin's backend capabilities.

KotlinKtorPostgreSQLExposed

Multiplatform Library

Build a shared library for iOS and Android using Kotlin Multiplatform.

KotlinKMMCompose Multiplatform

Recommended Tech Stack

Android

  • Jetpack Compose
  • Room
  • Hilt
  • Navigation

Backend

  • Ktor
  • Spring Boot
  • Exposed

Async

  • Coroutines
  • Flow
  • StateFlow

Testing

  • JUnit
  • MockK
  • Turbine
FAQ

Frequently Asked Questions

Kotlin is preferred by Google and most companies. Java still works but Kotlin is more modern and concise. Learn Kotlin for Android; Java knowledge is a bonus for legacy code.

No. Kotlin works for backend (Ktor, Spring Boot), multiplatform (iOS, web, desktop), and scripting. Android is the main market, but Kotlin is expanding.

No, especially if you know Java. It's more concise and has a gentler learning curve than many languages. Most developers become productive within weeks.

Growing but still maturing. Useful for sharing business logic between iOS and Android. Compose Multiplatform extends to desktop and web. Worth learning but most jobs are still Android-focused.

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