3. Apache Flink Creator: Kostas Tzoumas

Apache Flink is an open-source software framework designed for processing large datasets in real-time. It allows users to analyze data streams and batch data efficiently. Kostas Tzoumas is one of the key creators behind Flink, contributing to its development and design. Unlike traditional data processing methods that handle data in batches, Flink processes data as it arrives, making it ideal for applications that require immediate insights, like live analytics or monitoring. Tzoumas's work has significantly influenced how businesses manage and understand their data in fast-paced environments.