KotlinConf 2025: Last Tickets, Epic Talks, an Evening to Remember, and More
We’re almost there – KotlinConf’25, the major Kotlin event of the year, is coming up soon! This time, it’s bigger, bolder, and packed with even more insights. Hear from Spring creator Rod Johnson, dive into a case study from Duolingo’s team, and discover how Kotlin Multiplatform powers navigation in the McDonald’s app. From not-to-miss sessions […]
We’re almost there – KotlinConf’25, the major Kotlin event of the year, is coming up soon! This time, it’s bigger, bolder, and packed with even more insights. Hear from Spring creator Rod Johnson, dive into a case study from Duolingo’s team, and discover how Kotlin Multiplatform powers navigation in the McDonald’s app.
From not-to-miss sessions to the legendary party, here’s a quick preview of everything waiting for you in Copenhagen, Denmark, on May 21–23.
Introducing our amazing speakers
Each year, KotlinConf brings together leading industry experts and passionate community members from around the world. While some of our speakers are longtime KotlinConf attendees, this year’s lineup also features exciting new voices taking the stage for the first time.
Here’s a sneak peek at just a few of the sessions you’ll find on a schedule packed with insight and inspiration:
Here’s a sneak peek at just a few of the sessions you’ll find on a schedule packed with insight and inspiration:
- Kotlin and Spring: The Modern Server-Side Stack – Rod Johnson, Coder, Creator, Investor.
Rod will discuss his experience switching from Java to Kotlin while building a server-side application implementing structured RAG.
- Qualities of a Well-Functioning System – Diana Montalion, Architecting Systems, Mentrix.
Our day-two keynote speaker will explore how resilience, self-organization, and hierarchy help us navigate the growing complexity of modern software systems.
- Duolingo + KMP: A Case Study in Developer Productivity – John Rodriguez, Duolingo, Android and Developer Productivity, and Johnny Ye, Duolingo, Software Engineer.
Duolingo delivers weekly updates to 40M+ daily active users across iOS and Android. The team will share how Kotlin Multiplatform helps them move fast, the challenges they’ve tackled, and the key lessons they’ve learned.
- Leveraging KMP for Navigation in the McDonald’s App – Cas van Luijtelaar, Umain, Development Lead, and Anthony Bassey, Umain, Mobile Developer.
The team will reveal how they leverage Kotlin Multiplatform for navigation in the McDonald’s app, what challenges they overcame, and where they are now.
- From 0 to H-AI-ro: High-Speed Track to AI for Kotlin Developers – Urs Peter, Senior Software Engineer and JetBrains certified Kotlin Trainer.
In this talk, the speaker will provide a broad overview of AI terminology, concepts, and possibilities within the Kotlin ecosystem, empowering you to harness AI’s transformative potential in your projects.
You can see the full schedule of sessions and speakers on our website.
Practical learning with hands-on workshops
For the most devoted learners, we have prepared workshops – eight-hour, hands-on sessions with expert hosts from JetBrains and certified Kotlin trainers. All participants will enjoy personalized feedback and receive a certificate of attendance at the end. Workshops are selling fast, but we still have a few tickets for two of them:
Extracting, Transforming, and Analyzing Data With Kotlin
Hosts: Aleksei Zinovev, Team Lead in Kotlin for Data Science at JetBrains, and Jolan Rensen, Team Member in Kotlin Data Science at JetBrains.
Who is it for: This workshop is designed for all Kotlin developers seeking easy-to-use native tools for exploring, processing, and visualizing data for team reports or presentations. Attendees will learn how to leverage Kotlin for data-centric tasks with simple, convenient tools that integrate seamlessly into your native ecosystem, making data work more intuitive.
Building Shared UI With Compose Multiplatform
Hosts: Márton Braun, Developer Advocate at JetBrains, and Victor Kropp, Team Lead in Compose Multiplatform at JetBrains.
Who is it for: This workshop is for developers already familiar with the basics of Kotlin Multiplatform and Jetpack Compose who are looking to extend their skills by building a shared UI. The hosts will discuss how Compose Multiplatform works and show you how to apply your existing Compose skills across platforms. You’ll have hands-on time with a wide range of Compose features, focusing on how they work across different platforms.
Not just the talks!
We all love KotlinConf for its insightful sessions and cutting-edge content, but the experience goes far beyond the talks. It’s also a chance to connect with brilliant minds from the Kotlin community, chat with the team from JetBrains, take part in hands-on activities, and have some fun along the way.
What awaits you at KotlinConf 2025:
