Name: Utrecht JUG June Meetup with Viktor Gamov and Venkat Subramaniam
Start: 2025-06-03T17:30:00+02:00
End: 2025-06-03T21:30:00+02:00
Location: Adesso Netherlands BV

We are very happy proud to announce our next meetup with again two great speakers; Viktor Gamov and Venkat Subramaniam.

The meetup will be hosted by adesso and Flock.

Please join us and RSVP!

Because of the limited number of seats, please keep your RSVP up-to-date, so we can welcome someone else of you can't make it.

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17:30 Doors open
18:00 Food & Drinks
19:00 Introduction to Stateful Stream Processing with Apache Flink, by Viktor Gamov
20:00 Break
20:15 Extending Functional Pipelines with Gatherers by Venkat Subramaniam
21:15 Drinks

**Giveaways**
1 JetBrains licence

**Talks**

**Introduction to Stateful Stream Processing with Apache Flink**

Stream Processing has evolved quickly in a short time: only a few years ago, it was mostly simple real-time aggregations with limited throughput and consistency. Today, many stream processing applications have sophisticated business logic, strict correctness guarantees, high performance, low latency, and maintain terabytes of state without databases. Stream processing frameworks also abstract a lot of the low-level details away, such as routing the data streams, taking care of concurrent executions, and handling various failure scenarios while ensuring correctness.

**Extending Functional Pipelines with Gatherers**

The Stream API has a wealth of methods, like filter, map, takeWhile, limit, and so on, to build functional pipelines. Yet, you may run into situations in your applications that readily do not fall in place to make use of these built-in methods. The new gatherer() function, along with the Gatherer interface, gives you the necessary tools to create your own custom steps in the functional pipeline. In this presentation, learn about the different types of gatherers and how to implement them using practical live-coded examples.

**Speakers**

**Vikor Gamov**

Viktor Gamov is a Principal Developer Advocate at Confluent, founded by the original creators of Apache Kafka®. With a rich background in implementing and advocating for distributed systems and cloud-native architectures, Viktor excels in open-source technologies. He is passionate about assisting architects, developers, and operators in crafting systems that are not only low in latency and scalable but also highly available.

As a Java Champion and an esteemed speaker, Viktor is known for his insightful presentations at top industry events like JavaOne, Devoxx, Kafka Summit, and QCon. His expertise spans distributed systems, real-time data streaming, JVM, and DevOps.

Viktor has co-authored "Enterprise Web Development" from O'Reilly and "Apache Kafka® in Action" from Manning.

Follow Viktor on X—@gamussa to stay updated with his latest thoughts on technology, his gym and food adventures, and insights into open-source and developer advocacy.

**Venkat Subramaniam**

Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., and an instructional professor at the University of Houston.

He has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia, and is a regularly-invited speaker at several international conferences. Venkat helps his clients effectively apply and succeed with sustainable agile practices on their software projects.

Venkat is a (co)author of multiple technical books, including the 2007 Jolt Productivity award winning book Practices of an Agile Developer. You can find a list of his books at https://www.agiledeveloper.com

Teo Bais

Willem van de Griendt

Michel van Dongen

Utrecht Java User Group

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Utrecht JUG June Meetup with Viktor Gamov and Venkat Subramaniam

Adesso Netherlands BV

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Utrecht JUG June Meetup with Viktor Gamov and Venkat Subramaniam

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