Podcast · Tech & Science
by Talking Kotlin · English · Tech & Science
A bimonthly podcast that covers the Kotlin programming language by JetBrains, as well as related technologies.
1 Sep 2026 · 15 min
In this Kotlin Conversations episode from KotlinConf 2026, Dan Kim shares how he’s building full-stack web apps entirely in Kotlin using Ktor, Compose, and WebAssembly. He talks about KMP, the future of WASM on the web, and whether Android developers can finally become frontend developers without writing JavaScript. The conversation also explores AI tools, vibe coding, and why the human side of engineering still matters most.
25 Aug 2026 · 15 min
How can Kotlin help teams build safer financial software, migrate legacy systems, and move faster without increasing risk?In this episode of Kotlin Conversations from KotlinConf 2026, we talk with Yuri Geronimus, Senior Staff Engineer and Chief Architect at Verifone, about using Kotlin in the world of payments and financial technology — where software defects, compliance requirements, and certification tests can have serious consequences.
18 Aug 2026 · 14 min
Three Android developers. Zero Swift experience. A two-month deadline.At KotlinConfersations'2026, Suhyeon (Leah) Kim shares how her team used KMP to build and ship a brand-new iOS app despite having no iOS developers on the team.
11 Aug 2026 · 15 min
Watch the Talk Here: https://youtu.be/VVf6txPZk3YIn this KotlinConfersations'26 episode, Sony engineer Sergio Carrilho shares how his team used Kotlin Multiplatform to build and evolve the Sony Sound Connect app. He talks about the challenges of Bluetooth development, hardware-software integration, and merging apps built on different tech stacks. Sergio also explains why architecture was the key to creating a seamless experience across Android and iOS.
4 Aug 2026 · 30 min
In this KotlinConf'26 interview, Huyen sat down with Jake Wharton to talk about the past, present, and future of Kotlin and software development. And, of course, a bit about AI. https://jakewharton.com
S1 · E145 · 29 Apr 2026 · 1 hr 35 min
The Kotlin ecosystem is full of powerful tools and frameworks — and in this episode of Talking Kotlin, we’re diving deep into Exposed, JetBrains’ Kotlin SQL library, which recently reached its 1.0 release.Sebastian and Márton sit down with Chantal from the Exposed team to explore what Exposed is, where it came from, and how it helps developers work with databases in a Kotlin-first way. From type-safe SQL DSLs and lightweight DAO support to JDBC, R2DBC, Ktor, Spring Boot, migrations, and future KMP plans — this episode covers the past, present, and future of Exposed.You’ll learn:What makes…
S1 · E145 · 5 Mar 2026 · 1 hr 39 min
Every time you tap through a subway gate in New York City, you’re using Kotlin Multiplatform! In this episode, we sit down with Paweł Kwieciński from Masabi to explore how they brought a decade-old Java codebase to KMP, powering ticket validation across mobile apps, embedded devices, and backend systems for public transit agencies worldwide. Resources: Masabi J2ObjC (Java to Objective-C translator) Google Workspace Migration to Kotlin Large Scale Changes with AI – Uber | Ty Smith KotlinX DateTime Ktor (Client & Server) Burst library (archived) Java ME (Micro Edition) Mbed TLS SQLDelight…
S1 · E143 · 3 Feb 2026 · 50 min
Sebastian and Márton host a special, audio-only episode where they discuss everything that’s new and noteworthy in the Kotlin 2.3 release. They touch on new language features like the unused return value checker and explicit backing fields, previously added features that became stable in this release, new APIs for time and UUID handling in the standard library, and improvements across all Kotlin platforms — from Native to Wasm and JS. Resources: What’s new in Kotlin 2.3 KotlinConf Golden Kodee Community Awards Hosts: Sebastian Aigner – Website | Bluesky Márton Braun – Website | Bluesky…
S1 · E142 · 17 Nov 2025 · 1 hr 23 min
Sebastian and Márton talk to Vadim Briliantov, the Technical Lead for Koog: an agentic framework built by JetBrains. We learn about what AI agents are, and why building them in Kotlin with Koog is a great choice. We also discuss all the different ways AI agents can connect to other systems and your existing code, and look at advanced features for agents like custom strategies, model switching, and history compression. Resources: JetBrains/koog on GitHub Koog Documentation Hosts: Sebastian Aigner – Website | Bluesky Márton Braun – Website | Bluesky Guest: Vadim Briliantov – LinkedIn | Medium…
S1 · E141 · 23 Oct 2025 · 2 hr 3 min
Sebastian and Márton chat with Marcin Moskała about coroutines. Resources: Coroutines Mastery course Coroutines | Kotlin Documentation kotlinx.coroutines Taming Asynchronous Beasts | Marcin Moskała Coroutine Debugging in IntelliJ IDEA | Alexey Merkulov Lifecycles, Coroutines and Scopes | Alejandro Serrano Mena Collect Like a Pro | Manuel Vivo Untangling Coroutine Testing | Márton Braun JetBrains/lincheck – Concurrent testing framework #talking-kotlin on Kotlin Slack Hosts: Sebastian Aigner – Website | Bluesky Márton Braun – Website | Bluesky Guest: Marcin Moskała – kt.academy Timeline:…
S1 · E140 · 11 Aug 2025 · 1 hr 31 min
Sebastian and Alex chat about the kotlinx.rpc project, in a special episode recorded in the Munich JetBrains office. They explore all the different components of the library, how you can use it to define RPC services and clients, integrate with Ktor and existing gRPC definitions, and more. While the library is still experimental, it’s already feature-packed, and it has ambitious plans for the future! kotlinx-rpc on GitHub #kotlinx-rpc on Slack kotlinx.serialization on GitHub gRPC Host: Sebastian Aigner Website Bluesky Guest: Alex Sysoev LinkedIn GitHub
S1 · E139 · 15 May 2025 · 57 min
Sebastian and Márton are joined by Denis Borisevich from RIEDEL Communications, and learn about how Kotlin is used behind-the-scenes to power media, sports, and entertainment broadcasts watched by millions around the globe. Tune in for an exciting story about how Kotlin, Ktor, and Arrow are being used in production for a use case where robust software is mission-critical. Resources: Riedel Communications TornadoFX Unsigned integer types Arrow Ktor Eurovision Hosts: Sebastian Aigner – Website | Bluesky Márton Braun – Website | Bluesky Guest: Denis Borisevich – LinkedIn Timeline: (0:00)…
S1 · E136 · 27 Mar 2025 · 1 hr 5 min
Sebastian and Márton chat with Rod Johnson, the creator of the Spring Framework. Rod tells the story of how Spring was born more than two decades ago, and shares his recent journey of coming back to the JVM and discovering all the fun of being a newcomer to Kotlin. Resources: Expert One-on-One J2EE Design and Development: Rod Johnson Oh the Places You'll Go! Shoulders of Giants: Languages Kotlin Learned From | Andrey Breslav Revamping and Extending Kotlin's Type System | Ross Tate Scala in 2018 Keynote | Rod Johnson But Java has pattern matching! | Alejandro Serrano Mena Hosts: Sebastian…
S1 · E137 · 20 Feb 2025 · 52 min
Sebastian and Márton discuss building KMP libraries with Jay Shortway, the author of RevenueCat’s Kotlin Multiplatform SDK for in-app purchases. Resources: RevenueCat KMP SDK How we built the RevenueCat SDK for Kotlin Multiplatform Hybrid SDK Architecture at RevenueCat ttypic/swift-klib-plugin on GitHub RevenueCat/purchases-kmp on GitHub Consider moving `Instant` and `Clock` to the standard library · Kotlin/kotlinx-datetime RevenueCat openings Hosts: Sebastian Aigner – Website | Bluesky Márton Braun – Website | Bluesky Guest: Joop Korteweg – Twitter Timeline: (0:00) Intro (0:44) What’s…
S1 · E136 · 23 Jan 2025 · 53 min
Sebastian and Pamela discuss what it means to be an expert in Kotlin Multiplatform, with the help of a panel of experts! Learn about why it's interesting to dive deep into a certain technology, recommendations on how to learn advanced topics, and general advice on how to get the most out of using KMP. SKIE KMP libraries: whyoleg/cryptography-kotlin Interesting code to explore: JetBrains/kotlin Kotlin/kotlinx-datetime Kotlin/kotlinx-io Kotlin/kotlinx.coroutines Cartesian product by Jake Get an invite! Ecosystem wishlist: wasmJs support in SQLDelight Compose Multiplatform support in MapLibre…
9 Dec 2024 · 1 hr 5 min
In a slightly unconventional episode, Sebastian and Márton talk to the founders of Skip, an iOS-to-Android, Swift-to-Kotlin transpiler solution. Marc and Abe have a background working on both Apple platforms and the JVM, and their latest project is a bridge across these two ecosystems. Skip Skip.tools on GitHub Contributing to SkipUI webinar kdoctor Hosts: Sebastian Aigner Website Bluesky Márton Braun Website Bluesky Guests: Abe White Twitter Mastodon Marc Prud'hommeaux GitHub (0:00) Weather (2:02) Introductions (3:10) Elevator pitch (3:45) The initial idea (6:14) Pivot around the…
E134 · 21 Nov 2024 · 46 min
Sebastian introduces the new co-host of the podcast, in a special episode recorded on location at droidcon New York! Joined by Russell Wolf, author of the multiplatform-settings library, we discuss the conference, different code sharing approaches for Kotlin Multiplatform, and how to build great multiplatform libraries. droidcon New York When sharing isn’t caring: Using platform-specific code in Kotlin Multiplatform (Russell’s talk) Compose Multiplatform on iOS: On the Road to Stable (Seb’s talk) Composing an API the *right* way (Márton’s talk) The deprecated Accompanist WebView…
29 Aug 2024 · 1 hr 7 min
In this episode, we talk about the future of Kotlin and its development after the 2.0 version.
3 Jul 2024 · 49 min
In this episode of Talking Kotlin, Hadi Hariri and Sebastian Aigner chat with Raphael Michel, the founder of pretix, an open-source ticketing system. Raphael shares his fascinating journey, from building pretix to solve a conference ticketing problem to becoming a full-fledged company with a global reach. The conversation dives into the complexities of event ticketing, the challenges of the pandemic, and the surprising new markets pretix entered, like managing access for public swimming pools in Berlin. Throughout the episode, Raphael discusses how Kotlin plays a crucial role in pretix's…
12 Jun 2024 · 47 min
Join us for an in-depth conversation with Michael Rittmeister and Luca Kellermann, the brains behind Kord, a Kotlin library designed for interacting with the Discord API. In this episode, we dive into the complexities of the Discord API, the importance of WebSockets, and the challenges and strategies in building and maintaining a modularized library. We also explore the future of Kord, including their move towards native support and the ongoing effort to keep up with Discord's evolving features. Whether you're a Kotlin enthusiast or a Discord bot developer, this episode is packed with…
6 Mar 2024 · 43 min
🚀 Dive into the Compose multiverse with the latest episode of Talking Kotlin! 🌐 In this insightful conversation, our hosts, Seb and Hadi, bring on a special guest, Adriel Café, to discuss two powerful libraries in the Kotlin ecosystem – Lyricist and Voyager. 🎼 Lyricist: The Missing Piece of Jetpack Compose Adriel shares the journey behind Lyricist, an open-source library designed to simplify UI development with Jetpack Compose. Discover how Lyricist leverages sealed classes to enhance navigation, making it an indispensable tool for Compose-based Android apps. 🌍 Voyager: Compose on Warp…
13 Feb 2024 · 44 min
🚀 Immerse yourself in the world of Kotlin as the latest podcast episode unveils the inner workings of the Kotlin Foundation! 🎙️ Join Sebastian and Hadi and a stellar lineup of guests, including Ksenia Shneyveys, Trisha Gee, Kevin Galligan, Charles Anderson, and Jeffrey van Gogh, as they share exclusive insights into the foundation's mission, projects, and plans for the future. 🌐 Discover the foundation's inception, core objectives, and impactful collaborations between founding members JetBrains and Google. Gain a deeper understanding of Kotlin's significance in the tech landscape and…
14 Dec 2023 · 56 min
Join us in this exciting episode of Talking Kotlin as we dive into the world of Kotlin Multiplatform with three special guests, Mike Nakhimovich, Yigit Boyar, and Matthew Ramotar, the minds behind the popular library 'Store' — a Kotlin Multiplatform library for building network-resilient applications. We explore the journey of 'Store' from its earlier versions to the recently released Store 5, shedding light on the challenges faced in making the library multiplatform. The conversation touches on various topics, from the adoption of Kotlin Multiplatform in different use cases, the integration…
29 Nov 2023 · 42 min
Welcome to another engaging episode of Talking Kotlin! In this edition, we dive into the dynamic world of Android development with Colin White, the creator of the widely acclaimed Coil library. Join us as we discuss the latest developments, insights, and the exciting roadmap for Coil. 🚀 Highlights from this Episode: Learn about Colin's journey in developing the Coil library. Discover the pivotal role Coil plays in simplifying image loading for Android developers. Get an exclusive sneak peek into the upcoming Coil 3.0, featuring multi-platform support and seamless integration with Jetpack…
14 Nov 2023 · 51 min
Dive into the intricate world of microservices with the latest episode of Talking Kotlin, hosted by Sebastian and Hadi . In this engaging conversation, the hosts are joined by Ivan and David, the masterminds behind HTTP4K, to discuss the nuances of simplicity in software development and the often-misunderstood landscape of microservices. The episode kicks off with a discussion about the deceptive allure of complexity in building software. Ivan and David share insights into their roles as consultants, shedding light on the misconception that complexity is synonymous with efficiency. They…
19 Sep 2023 · 45 min
In this episode, we talk to Rick Clephas, one of the Kotlin Foundation Grants Program winners and the creator of KMP-NativeCoroutines and KMM-ViewModel. Rick shares how the KMP-NativeCoroutines library came into existence, how it works, and the challenges he faced during its development. We’ve also discussed Rick’s motivation to apply for the grant and how it helps him allocate more time and resources to the project. And finally, watch this episode to see how we reached the decision to rename the KMM-ViewModel library to KMP-ViewModel and the reason behind it. The Kotlin Foundation Grants…
10 Aug 2023 · 55 min
In this episode, we are talking to engineers from @instaboxglobal who use Compose Multiplatform in Production.
29 Jun 2023 · 55 min
In this episode of Talking Kotlin, we are chatting with Sébastien Deleuze about the promising future and the huge potential of Kotlin for WebAssembly in the browser and beyond.
4 May 2023 · 48 min
Does synthesizing a database sound like magic to you? In this episode of Talking Kotlin, we discuss how Synthesized uses Kotlin together with custom DSLs and OpenAPI to do just that! ––––––––––––––––––––––––––– SYNTHESIZED – https://www.synthesized.io/ Hurdy-Gurdy – https://github.com/CourseOrchestra/hurdy-gurdy KotlinPoet – https://github.com/square/kotlinpoet Swagger Parser – https://github.com/swagger-api/swagger-parser
20 Mar 2023 · 1 hr 4 min
Welcome to the latest episode of Talking Kotlin! In this edition, we are thrilled to have Amrita, Kieran, and Zac, as we dive into a detailed discussion on Circuit - a simple, lightweight, and extensible framework for building Kotlin applications that’s Compose from the ground up. If you're interested in learning more about Circuit and how it can help streamline your Kotlin development process, be sure to tune in to this episode of Talking Kotlin! Circuit - https://github.com/slackhq/circuit Amrita – https://amritav.com/ Zac – https://www.zacsweers.dev/ Kieran – https://twitter.com/kierse
A bimonthly podcast that covers the Kotlin programming language by JetBrains, as well as related technologies.
Talking Kotlin is a English tech & science podcast from Talking Kotlin. Melo plays each episode straight from the publisher's own feed — no ads added, no account needed — and remembers where you stopped, in this browser only.
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