Apache Flink® Meetup Berlin
Production Insights from Industry Leaders
Join us for an evening of deep technical insights into Apache Flink® in production, featuring engineering leaders from two of Europe's largest tech-driven companies.
Who Should Attend
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Data Engineers working with streaming data
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Platform Engineers building real-time infrastructure
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Technical Leads evaluating stream processing solutions
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Anyone optimizing Flink applications for performance and cost
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Developers choosing between Table API and DataStream API
Networking, Drinks & Pizza
After the talks, stay for networking, free drinks, and pizza with fellow data streamers.
Share ideas, exchange war stories, and discuss what’s next for Apache Flink in 2026 and beyond.
Where: Zalando SE BHQ-X | When: 03.03.2026, 18:00-21:00 CET
Agenda & Speakers
18:00 Welcome & introductions
18:15 Tigran Grigoryan, Delivery Hero
"Metric Calculations in Flink"
Discover how Delivery Hero leverages Flink for real-time metric calculations at scale. Learn practical patterns, performance optimization techniques, and architectural decisions for building reliable metrics pipelines that power business-critical decisions.
19:00 Maryna Kryvko, Zalando
“Why We Ditched Table API Joins: Cutting State by 75% with DataStream Unions”
A deep dive into a bold architectural decision at Zalando. Learn why the team moved away from Table API joins in favor of DataStream unions, achieving a dramatic 75% reduction in state. Maryna shares the performance bottlenecks they encountered, the trade-offs they evaluated, and the practical implementation details that delivered massive efficiency gains in production.
19:45 Erik Schmiegelow, Hivemind Technologies AG
"Streams as Tables: Cutting Data Platform Costs with Continuous Materialisation"
Erik is a director and co-founder of Hivemind Technologies AG, a technology consultancy focussed on cloud and data engineering with functional programming and Infrastructure as Code. Prior to Hivemind, Erik founded several companies and worked in finance, advertising and industrial sectors building scalable distributed software platforms
19:50: Q&A
20:00 to 20:30: Networking and Closing Session