Owner at Webosystem

Krystian Zybała

A software developer with 10 years of experience. On a daily basis, he focuses on JVM performance in distributed systems, squeezing every bit of performance out of Kafka. As a hobby, he explores the JVM, performance optimization, and reactive systems.

Past events

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13 May
2026

17:30

Hybrid event

j-labs, Zabłocie 43B, Kraków

Coding Agents vs Legacy: A Practical Guide to Worst Practices

Join us for the #104 Talk4Devs!

All talks will be held in Polish. To sign up, please switch to the Polish version of our website.

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Jarosław Michalik

Fractional CTO & Google Developer Expert (GDE)

28 April
2026

17:30

Hybrid event

j-labs, Zabłocie 43B, Kraków

Concurrency: No More Jokes

Join us for the #103 Talk4Devs!

All talks will be held in Polish. To sign up, please switch to the Polish version of our website.

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Jarosław Pałka

Senior Staff Software Engineer\Team lead\Benchmarking infrastructure at Neo4j

17 March
2026

17:30

Hybrid event

j-labs, Zabłocie 43B, Kraków

Symphony of Agents: Orchestrating AI with Modern Frameworks

Join us for the #102 Talk4Devs!

All talks will be held in Polish. To sign up, please switch to the Polish version of our website.

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Ryszard Szwajlik

AI Technical Lead at j-labs
Jakub Gajski

AI Technical Lead at j-labs

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