Portfolio and Project Evaluation
- Assessing the complexity, innovation, and diversity of Android apps, backend services, and multiplatform solutions.
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Skilled Kotlin Developers Ready to Join Your Team
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Top 20 Global Companies Using Kotlin in 2025
This global adoption proves why businesses choose to Hire Top Kotlin Developers for modern, scalable, and high-performance applications.
Highlight: Google declared Kotlin as the preferred language for Android development and uses it extensively across their ecosystem.
Impact: Enhanced developer productivity, reduced boilerplate code, and improved app stability across billions of Android devices.
Notable Use: Android OS components, Google Play Store, and various Google mobile applications.
Netflix
Highlight: Netflix leverages Kotlin for their Android application and backend microservices to deliver seamless streaming experiences.
Impact: Improved performance, reduced crashes, and enhanced user engagement across 230+ million subscribers worldwide.
Notable Use: Netflix Android app, content recommendation engines, and streaming infrastructure.
Uber
Highlight: Uber adopted Kotlin for their Android applications and backend services to handle millions of ride requests globally.
Impact: Increased development velocity, reduced null pointer exceptions, and improved code maintainability.
Notable Use: Uber rider and driver Android apps, real-time location tracking, and payment systems.
Airbnb
Highlight: Airbnb uses Kotlin for their Android application and backend services to manage millions of property listings and bookings.
Impact: Enhanced app performance, improved developer experience, and faster feature delivery cycles.
Notable Use: Airbnb Android app, booking management system, and host communication platform.
Highlight: Pinterest migrated their Android application to Kotlin to improve code safety and developer productivity.
Impact: Reduced app crashes, faster development cycles, and improved user experience for 450+ million users.
Notable Use: Pinterest Android app, image processing services, and recommendation algorithms.
Trello (Atlassian)
Highlight: Trello rebuilt their Android application using Kotlin to provide better project management capabilities.
Impact: Enhanced app stability, improved synchronization features, and better offline functionality.
Notable Use: Trello Android app, real-time collaboration features, and notification systems.
Evernote
Highlight: Evernote adopted Kotlin for their Android application to improve note-taking and synchronization capabilities.
Impact: Better app performance, reduced memory usage, and enhanced cross-device synchronization.
Notable Use: Evernote Android app, document scanning, and cloud synchronization.
Coursera
Highlight: Coursera uses Kotlin for their Android application to deliver online education to millions of learners worldwide.
Impact: Improved video streaming performance, better offline learning capabilities, and enhanced user engagement.
Notable Use: Coursera Android app, video player optimization, and progress tracking.
Square
Highlight: Square utilizes Kotlin for their point-of-sale Android applications and payment processing backend services.
Impact: Enhanced transaction reliability, improved security features, and faster payment processing.
Notable Use: Square Point of Sale Android app, payment APIs, and merchant dashboard.
JetBrains
Highlight: JetBrains, the creator of Kotlin, uses it extensively across their development tools and IDEs.
Impact: Demonstrated Kotlin's capabilities in building complex developer tools and enhanced their own productivity.
Notable Use: IntelliJ IDEA components, TeamCity CI/CD platform, and developer tools.
Slack
Highlight: Slack adopted Kotlin for their Android application to improve team communication and collaboration features.
Impact: Better real-time messaging performance, reduced app size, and improved notification handling.
Notable Use: Slack Android app, real-time messaging infrastructure, and file sharing.
Duolingo
Highlight: Duolingo uses Kotlin for their Android application to deliver language learning experiences to millions of users.
Impact: Enhanced gamification features, improved lesson loading times, and better progress tracking.
Notable Use: Duolingo Android app, adaptive learning algorithms, and social learning features.
Zomato
Highlight: Zomato leverages Kotlin for their Android application and backend services to handle food delivery operations.
Impact: Improved order tracking, enhanced restaurant discovery, and better delivery coordination.
Notable Use: Zomato Android app, real-time order tracking, and restaurant management systems.
Tinder
Highlight: Tinder uses Kotlin for their Android application to provide seamless dating experiences and real-time matching.
Impact: Enhanced swiping performance, improved chat functionality, and better location-based matching.
Notable Use: Tinder Android app, matching algorithms, and real-time messaging.
Basecamp
Highlight: Basecamp adopted Kotlin for their Android application to improve project management and team collaboration tools.
Impact: Better synchronization across devices, improved task management, and enhanced team communication.
Notable Use: Basecamp Android app, project tracking, and team collaboration tools.
Capital One
Highlight: Capital One uses Kotlin for their mobile banking applications and backend financial services.
Impact: Enhanced security features, improved transaction processing, and better user authentication.
Notable Use: Capital One Android app, secure banking APIs, and fraud detection.
Gradle
Highlight: Gradle adopted Kotlin for their build automation tools and uses Kotlin DSL for build scripts.
Impact: Improved build script readability, better IDE support, and enhanced developer experience.
Notable Use: Gradle build tool, Kotlin DSL implementation, and build automation services.
Corda (R3)
Highlight: R3's Corda blockchain platform is built entirely in Kotlin for enterprise blockchain applications.
Impact: Enhanced smart contract development, improved interoperability, and better enterprise integration.
Notable Use: Corda blockchain platform, smart contract execution, and blockchain solutions.
Spring Framework
Highlight: Spring Framework provides first-class Kotlin support for building enterprise backend applications.
Impact: Improved developer experience, enhanced functional programming capabilities, and better DSL support.
Notable Use: Spring Boot applications, reactive programming with WebFlux, and microservices.
ING Bank
Highlight: ING Bank uses Kotlin for their mobile banking applications and backend financial services across multiple countries.
Impact: Enhanced security compliance, improved transaction reliability, and better cross-platform code sharing.
Notable Use: ING Mobile Banking Android app and payment processing systems.
Why Do These Companies Choose Kotlin?
Discover the key advantages that make Kotlin the language of choice for modern applications
Preferred for Modern Android
Kotlin is Google's official language for Android. Companies that hire Kotlin developers benefit from enhanced productivity, improved app stability, and access to the latest Android features.
Scalable Backend Services
With powerful frameworks like Spring Boot and Ktor, Kotlin is excellent for building high-performance, scalable microservices and backend systems for millions of users.
Enhanced Developer Productivity
Kotlin's concise syntax, null safety, and functional programming features reduce boilerplate code, prevent common errors, and significantly speed up development cycles.
Cross-Platform Power
Kotlin Multiplatform allows developers to share code between Android, iOS, web, and backend, reducing development time and ensuring business logic consistency across all platforms.
Modern, Multi-Platform Kotlin Solutions
Kotlin is Google's preferred language for Android, trusted by global leaders for building high-performance mobile apps and scalable backend services.
- Improved app stability and performance on Android
- Increased development velocity and code safety
- Proven ability to power complex, high-traffic backend microservices and APIs.
Netflix
Uber
Airbnb