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Kids, Play Nice! - Writing With Kotlin-Java Interop

Britt Barak

Android GDE


Britt Barak leads the developer experience of Nexmo's programmable conversation SDKs and API. In the past, she led the mobile engineering teams of various startup companies in Israel, the “Startup Nation”. Britt is a Google Developer Expert, a worldwide public speaker, who is passionate about developers and startup communities, and diversity in tech.


Although it may be many developers’ favourite by now, Kotlin is not *yet* everywhere. In the desire to deliver a library or an API that will provide the best experience for both Kotlin and Java developers, there are a few things to be aware of. Whether you’re creating a library or exposing an API for either external or internal use, you should make sure Kotlin and Java play nice. This talk will present some of our experiences at Nexmo in the Kotlin-Java interop realm. It will share some challenges and considerations we faced, some gotchas we encountered and some tips that will make your lives easier when striving for great developer experience.