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17 Kotlin Developers You Can Rely On

kotlin developers - 17 Kotlin Developers You Can Rely On

Kotlin has rapidly become one of the most important programming languages for mobile, backend, and multiplatform development—driven by a vibrant community of forward-thinking engineers.

This includes influential open-source contributors, JetBrains and Google insiders shaping the Kotlin ecosystem, Android experts driving enterprise adoption, and educators creating essential learning resources. Below is an updated and verified list of the top Kotlin developers active today, selected for their technical contributions, public visibility, and real-world impact across platforms.

  1. Christina Lee
  2. Hadi Hariri
  3. Sebastian Aigner
  4. Antonio Leiva
  5. Jake Wharton
  6. Florina Muntenescu
  7. Leland Richardson
  8. Rodrigo Oliveira
  9. Mohit Sarveiya
  10. Salomon Brys
  11. Rivu Chakraborty
  12. Jeffrey van Gogh
  13. Sébastien Deleuze
  14. Yigit Boyar
  15. Eve Matthaey
  16. Huyen Tue Dao
  17. Igor Wojda

Now, let’s delve into their profiles and contributions:

Christina Lee

YouTube Video

Nationality: American

Christina Lee is an Android engineer at Pinterest and a Google Developer Expert for Android and Kotlin.

She helped pioneer Kotlin use at Pinterest and advocates null-safety and reactive programming for Android. Lee frequently speaks at conferences (Droidcon, Women Techmakers) about Kotlin and Jetpack Compose. Her engineering blog posts and conference presentations on Kotlin for Android inspire developers to embrace modern Kotlin-based patterns.

Hadi Hariri

Nationality: Venezuelan

Hadi Hariri is VP of Program Management at JetBrains and a co-founder of the Kotlin programming language.

He authored Kotlin in Action and co-founded the Kotlin community (blog, podcast). Hariri frequently speaks about Kotlin’s design and ecosystem, and he heads the Kotlin Foundation. He is very active on social media, sharing insights on Kotlin’s evolution and community.

Sebastian Aigner

Nationality: Austrian

Sebastian Aigner (aka “Sebi”) is a JetBrains Developer Advocate for Kotlin and Compose Multiplatform.

He co-hosts the official Kotlin YouTube channel and the “Talking Kotlin” podcast, creating many Kotlin tutorial videos. Aigner is active in the community (Kotlin Slack, KotlinLang Twitter) and often gives talks on Kotlin multiplatform UI (Compose). Through his workshops and blog posts, he has become a key influencer in teaching Kotlin and Compose.

Antonio Leiva

Antonio Leiva - 17 Kotlin Developers You Can Rely On

Nationality: Spanish

Antonio Leiva is a Kotlin and Android trainer (CEO of DevExpert) and Google Developer Expert in Android.

He has authored online courses and a book on Kotlin for Android. Leiva runs workshops worldwide, writes Kotlin tutorials on his blog, and speaks at conferences about Kotlin best practices. His energetic advocacy and training materials have influenced many developers to adopt Kotlin.

Jake Wharton

Don’t use Kotlin just because it’s trendy. Use it because it solves real problems for your team.

Nationality: American

Jake Wharton is a veteran Android engineer (now at Cash App) known for creating numerous open-source libraries.

His projects like Retrofit and Kotlin Android projects have been widely adopted by the community. Wharton actively maintains his libraries and advises developers on Kotlin and Android best practices. He speaks at conferences and writes about Android development, making him a highly respected influencer in the Kotlin/Android space.

Florina Muntenescu

Nationality: Romanian

Florina Muntenescu is a Google Developer Advocate for Android (Jetpack team lead) who helped Google go Kotlin-first on Android.

She develops official Android libraries (Compose, architecture components) and writes Codelabs/tutorials all in Kotlin. Muntenescu frequently speaks at Google I/O and Droidcon about Kotlin and modern Android. Her blog posts and talks guide developers toward Kotlin-centric Android development.

Leland Richardson

Leland Richardson - 17 Kotlin Developers You Can Rely On

Nationality: American

Leland Richardson is a Google software engineer working on Jetpack Compose for Android.

Previously an Airbnb engineer, he co-developed Android UI frameworks using Kotlin. Richardson frequently contributes to open-source Compose samples and blogs about modern Kotlin-based UI development. He also streams on Twitch and speaks at Android meetups, helping developers learn Jetpack Compose (a Kotlin-first toolkit).

Rodrigo Oliveira

Nationality: Brazilian

Rodrigo Oliveira is a Principal Engineer at Gradle Inc. who led the creation of the Gradle Kotlin DSL.

He headed the Gradle Kotlin Script project and improved Kotlin support in Gradle builds. Oliveira speaks about build tooling and Kotlin at conferences (e.g. KotlinConf) and co-hosted episodes of Talking Kotlin. His work made it easier for developers to write Gradle scripts in Kotlin.

Mohit Sarveiya

Mohit Sarveiya - 17 Kotlin Developers You Can Rely On

Nationality: American

Mohit Sarveiya is a Google Developer Expert in Kotlin & Android and the author of the “Coding with Mohit” blog.

An early Kotlin adopter, he has given talks on Kotlin coroutines and Gradle optimization. Mohit creates tutorials on Kotlin techniques and release management, helping developers write efficient Kotlin. His GitHub and YouTube channel share practical Kotlin solutions, especially for Android and build tools.

Salomon Brys

Nationality: French

Salomon Brys is the creator of Kodein-DI (a Kotlin dependency-injection framework) and leader of Kodein Koders.

He has published numerous Kotlin libraries (DI, mocking, logging) and started the open-source Kodein initiative. Brys regularly speaks on Kotlin architecture (notably Kotlin Multiplatform) and advanced DI patterns. Through his blog posts and talks, he mentors developers in clean Kotlin code structure.

Rivu Chakraborty

Nationality: Indian

Rivu Chakraborty is India’s first Kotlin Google Developer Expert and a prolific author/speaker.

He co-founded the KotlinKolkata community and has written multiple Kotlin/Android books (e.g. Reactive Programming in Kotlin, Functional Kotlin). Rivu hosts Kotlin meetups and conferences across India and speaks internationally on functional programming in Kotlin. His blogs and conference talks provide mentorship to many Kotlin developers.

Jeffrey van Gogh

Jeffrey van Gogh - 17 Kotlin Developers You Can Rely On

Nationality: Dutch

Jeffrey van Gogh is Google’s Director of Engineering for Kotlin and co-lead of the Kotlin engineering team at Google.

He helps integrate Kotlin into Google’s infrastructure (Android Studio, KSP, compiler). Van Gogh’s team collaborates closely with JetBrains on the Kotlin compiler and tools. He is often quoted in Android dev posts about Kotlin, and he educates Google engineers on Kotlin-first development.

Sébastien Deleuze

Nationality: French

Sébastien Deleuze is a Spring Framework core committer (now at VMware) who led Kotlin integration in Spring and Spring Boot.

He introduced Kotlin support in Spring’s Kotlin DSL and organized Kotlin tracks at conferences. Deleuze appears on the Talking Kotlin podcast and JetBrains blog, discussing Kotlin’s role in server-side apps. His work has made Kotlin a first-class citizen in the Spring ecosystem.

Yigit Boyar

Yigit Boyar - 17 Kotlin Developers You Can Rely On

Nationality: Turkish

Yigit Boyar is a Google software engineer and early Kotlin advocate on Android.

He helped make Android’s Jetpack libraries Kotlin-first (Compose, Room, etc.) and authored Android KTX extensions. Boyar is active on Twitter with Android/Kotlin tips and co-organizes local Android community events. His influence includes guiding developers on Kotlin adoption and modern Android APIs like Jetpack Compose.

Eve Matthaey

Nationality: American

Eve Matthaey is a Senior Android Engineer at Meta who led the massive conversion of Meta’s Android codebase from Java to Kotlin.

In a Meta engineering blog post, she detailed translating millions of lines to Kotlin. Matthaey frequently speaks about large-scale Kotlin adoption and the tooling to support it. Her work demonstrates Kotlin’s feasibility at enterprise scale and influences best practices for migrating big projects.

Huyen Tue Dao

Huyen Tue Dao - 17 Kotlin Developers You Can Rely On

Nationality: American

Huyen Tue Dao is an Android developer and Google Developer Expert (Android/Kotlin) known for education.

She co-hosted the “Android Faithful” and “Android Dialogs” podcasts, sharing Kotlin and Android tips. Dao has written advanced tutorials (e.g. Programming Kotlin exercises) and speaks about software architecture with Kotlin. As a long-time Android engineer (Trello/Atlassian), she mentors developers on Kotlin adoption in mobile apps.

Igor Wojda

Nationality: Polish

Igor Wojda is a Senior Android Developer and Google Developer Expert (former Google DevRel engineer) focused on Android and Kotlin.

He authored the book Android Development with Kotlin and often gives talks/workshops on Android architecture using Kotlin. Wojda actively blogs and tweets about Kotlin patterns for Android, and he co-created the Konsist linter tool. His contributions in education and tools shape how many teams adopt Kotlin on Android.

Wrap Up

These legends represent exceptional talent, making them extremely challenging to headhunt. However, there are thousands of other highly skilled IT professionals available to hire with our help. Contact us, and we will be happy to discuss your hiring needs.

Note: We’ve dedicated significant time and effort to creating and verifying this curated list of top talent. However, if you believe a correction or addition is needed, feel free to reach out. We’ll gladly review and update the page.

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