Apache Flink® Meetup Berlin – Production Insights from Industry Leaders
Tuesday, March 3, 2026 | 18:00 CET
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.
What You'll Learn
Metric Calculations in Flink
Tigran Grigoryan, Delivery Hero
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.
Why We Ditched Table API Joins: Cutting State by 75% with DataStream Unions
Maryna Kryvko, Zalando
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.
Streams as Tables: Cutting Data Platform Costs with Continuous Materialisation
Erik Schmiegelow, Hivemind Technologies AG
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
Who Should Attend
Data Engineers working with streaming data
Platform Engineers building real-time infrastructure
Technical Leads evaluating stream processing solutions
Anyone optimizing Flink applications for performance and cost
Developers choosing between Table API and DataStream API
Schedule
18:00 – Welcome & introductions
18:15 – Talk 1: Metric Calculations in Flink
19:00 – Talk 2: Why We Ditched Table API Joins
19:45 – Talk 3: Streams as Tables
20:30 – Q&A, networking & pizza
This is a great opportunity to learn from practitioners running Flink at scale, ask questions, and connect with Berlin's streaming data community.
Space is limited – reserve your spot today!