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SPEAKERS

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Sławomir Śledź
Backend Developer
Evolution

 GitHub

I’m a developer who loves working with Java, Scala, and Haskell, and I’m especially into functional programming. I’m fascinated by AI—mainly large language models—and enjoy experimenting with how they can be used in real projects. I use Linux every day and like fine-tuning my setup to stay productive. When I’m off the clock, you’ll probably find me reading fantasy or sci-fi, lifting at the gym, cycling, or swimming.

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Maciej Gorywoda
Product Marketing Manager, IntelliJ Scala
JetBrains

 GitHub

I have worked as a Scala software developer and later a developer advocate since 2017. Since 2024 I’m a Scala Ambassador, and since 2025 I run a semester-long course of Scala at two main Warsaw universities.

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Tomasz Godzik
Team Lead, Scala Open Source
VirtusLab

 GitHub

Tomasz has worked with multiple programming language tools through the years trying to provide a productive environment for other developers to interact with. Currently, team lead of Scala Open Source team at VirtusLab.

Jakub Kozłowski
Lead Software Engineer
SiriusXM

 GitHub

Experienced Scala developer, avid Functional Programming fan, open-source contributor and maintainer, small-time YouTuber. Likes to mess with the unfamiliar, and find weird combinations of tech.
 
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Łukasz Biały
Scala Developer Advocate
VirtusLab

 GitHub

#1 Scala Fan at VirtusLab. I like types, functions and puzzles, mostly the ones with functions and types. I like mountains, cars, bikes and cats. Victim of a permanent information dependency syndrome. If you create Scala OSS I will bother you to do more of that. Have I mentioned that I like Scala?

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Jędrzej Rochala
Scala 3 Compiler / Tooling Engineer
VirtusLab

 GitHub

JVM tooling fanatic

Mateusz Kubuszok
Staff Software Developer
Chili Piper

 GitHub

Scala developer for 10 years, Chimney co-maintainer for 8. Blogged at Kubuszok.com, wrote Things you need to know about JVM (that matter in Scala).

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Łukasz Sowa
Managing Partner
Iterators

 GitHub

I’m Managing Partner at Iterators, the software consulting company I co-founded in 2013. I stay in the trenches – architecture reviews, coding standards, unblocking developers – while also doing hands-on CTO work for clients. Right now that’s Obi, a global mobility platform.

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