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Logo of conference Joker 2021

Joker 2021

International Java conference

October 25-28, 2021|Online


Joker is a large international Java conference for Senior Java developers.

All talks are devoted to Java technical issues and solutions. Main topics of the conference are performance, concurrency, testing, distributed systems and high loads in Java world, as well as the future of the platform.


  • 4K video

  • Livestream and recordings

  • We stand by what we do. If you are not satisfied with your experience, we'll give you your money back

  • Contests and talks from the partners

  • Online discussions

Conference faces




We would not be able to hold Joker on a regular basis without the tremendous support of our partners. Our conference is growing and evolving thanks to their efforts.

If you want to become a partner of our conference, please contact us via email —

  • Platinum partner

    • СБЕР
  • Gold partners

    • Сибур Диджитал
    • Accenture
    • Revolut
    • ВТБ
    • Райффайзенбанк
    • BellSoft
    • GPB Space
    • Luxoft
    • Мир Plat.Form
    • Deutsche Telekom IT Solutions
  • Silver partners

    • IT_One
    • BrandMaker
    • РТЛабс
    • МегаФон
    • Integrity Solutions
    • Nexign
  • Information partners

    • oleg_log
    • pro.jvm
    • IT-World
    • Skolkovo
    • JUG.MSK.RU
    • Let's Code It!
    • JavaHut
    • Мы обречены
    • CyberBionic Systematics
    • ITVDN
    • DeusOps
    • Rubrain
    • Jobsora
    • middlejava
    • JUGNsk
    • Kata Academy (by Java Mentor)
    • Hexlet
    • Jooble
    • Программирование Java, Kotlin, Go, C#, Python
    • Javanese Online