Kotlin Dev Day
Nov 27
2025
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Kotlin™ Dev Day

AMSTERDAM

Kotlin Dev Day is back! 

This event is organized from a core belief that knowledge sharing and giving back to the community is important in the world of IT to boost innovation and keep moving it forward. 

We are doing this for the community. At this event, we take “paying it forward” literally and are donating all profits to a cause that is related to Kotlin/software development. 

Kotlin Dev Day

Days
Hours
Minutes

A circular venue for a circular conference

We are a non-profit conference and believe in giving back to the community, and we needed a venue which represented this. CIRCA Amsterdam boosts an energy label A+++ and leads the way in sustainability with a strong focus on material reuse, energy efficiency, and circular initiatives.

Get inspired by like-minded people!

Dive into Kotlin with other experts and learn together!

Expect keynotes, live-coding sessions, and a lot of social talks with the people you’ll meet.

Join us for pre-conference Workshops

On the 26th November we will also be offering the chance to join some workshops. More information on these workshops will be made available on the 1st September.

Meet the speakers

Sebastian Aigner Developer Advocate @ JetBrains
Mikhail Zarechenskii Kotlin Language Lead @ JetBrains
Jerre van Veluw Kotlin Engineer @ Flock
Urs Peter Kotlin Developer Advocate @ Xebia
Simon Vergauwen JetBrains Developer advocate

Coming Soon

Conference Sponsors

These sponsors make this conference possible! A big shoutout to each of them. Be sure to visit their booths at the event to have a chat and participate in all the activities they came up with :)

Want to become a sponsor of Kotlin Dev Day? You can learn more here »

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Frequently Asked Questions

For whom is Kotlin Dev Day?

This event is for all engineers that love to know more about Kotlin. There are plenty of talks and sessions for each skill level and for both Server-Side and Android.

When and where does Kotlin Dev Day take place?

The event will take place at Circa Amsterdam, Seineweg 2, 1043 BG Amsterdam on the 27th November. We are also planning for some exclusive workshops on the 26th November. 

Types of tickets

Super Early bird (until 13th July) = EUR 199 

Early bird (14th July – 31st August) = EUR 249 

Regular (1st September onwards) = EUR 299 

Are you coming as a group? Group tickets will be available from the 1st September onwards at a 20% discount when you order 3 or more tickets. 

Please check the ticket page for more information at: https://kotlindevday2025.eventbrite.nl 

How can I submit my talk?

You can submit a session from 2nd June – 31st July via the following link: https://sessionize.com/kotlin-dev-day-amsterdam