Joker 2025

Java сonference for experienced developers

October 17–18Saint Petersburg + ONLINEOnline broadcast is also availableCosmos Saint-Petersburg Pulkovskaya Hotel: Pobedy Square 1

Buy a ticket Schedule

50speakers
40talks
15partners
1200participants

About conference

Joker is the largest Java conference in Russia.

Modern Java development practices. New Java features, Spring nuances, JVM under the hood, Kotlin and Scala, ORM and databases. Architecture and backend, loads and performance. DevOps.

The conference has been held in autumn in St. Petersburg since 2013. By JUG Ru Group.

Talk topics

VM/Runtime
Tooling/Frameworks
Architecture
Languages
Operations
Other

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Speakers

Vladimir Krasilshchik
JUG Ru Group
Ilya Sazonov
Axiom JDK
Pavel Kislov
Amplicode
Ilya Kuchmin
Amplicode
Alexander Matorin
Sber
Mikhail Polivakha
Sber
Alexey Ragozin
Andrey Kuleshov
Yandex Infrastructure
Fedor Sazonov
OpenIDE
Gregory Koshelev
Kontur
Denis Gabaydulin
Maksim Sidorov
SberDevices
Roman Elizarov
Yandex
Aleksandr Tokarev
Yandex
Semyon Kirekov
Avito
Dmitrii Frolov
T-Bank
Konstantin Plotnikov
WorkMe.io
Oleg Estekhin
Yandex Cloud
Sergei Samoilov
MWS Cloud Platform
Anastasiia Tushkanova
Yandex
Sergei Lugovoy
Koronatech
Alexander Sokolinsky
Individual Contributor
Petr Portnov
Ozon
Aleksander Shustanov
Haulmont
Konstantin Volokhovskii
PVS-Studio
Aleksei Volkov
VK
Sergei Bogdanov
Gazprombank
Ivan Grishov
SberDevices
Nikita Petrenko
SberDevices
Aleksandr Pakhomov
Unison
Vadim Tsesko
01.tech
Alexander Popov
MIPT

Experts

Alexander Lantsov
Mir Plat.Form
Vladimir Krasilshchik
JUG Ru Group
Fedor Sazonov
OpenIDE
Mikhail Polivakha
Sber
Ilya Kuchmin
Amplicode
Ivan Ugliansky
Huawei
Gregory Koshelev
Kontur
Alexander Nozik
Scientific Programming Centre
Andrey Kuleshov
Yandex Infrastructure
Denis Gabaydulin
Maxim Gorelikov
m2.ru
Vadim Tsesko
01.tech
Aleksei Volkov
VK
Alexander Sokolinsky
Individual Contributor
Sergei Samoilov
MWS Cloud Platform
Alexey Fyodorov
JUG Ru Group

Media

Blog at Habr.com
We publish transcripts of talks, interviews, and authors’ articles.
Selected Talks
Talks from different years caused the greatest response from the participants.
Materials
Look at how past conferences have been held.
Second cup of coffee with Joker
Joker Conference Podcast

Conference features

4K video
So that you can see each character on the slides.
Support
Our support team will reply to you very soon and will not leave you alone.
Discussions
You may chat with speakers and experts right after the talk. Both online and offline.
Change of scene
Offline is back. This is a chance to change the scene, listen to live talks, chat with your colleagues, and just enjoy your time at the afterparty offline.
TechTalks
There is lots of technical content with a little bit of non-technical content. Our conferences will help you find your way in the industry by teaching you about trends, tools, approaches, and global language and platform updates.
The content selected by the experts
The content is included in the program only after it has been checked by the program committee, which has experts with wide experience in Java development.