Nikolai Nikolaev connects business requirements to IT execution at Eurowings Holidays. He focuses on turning raw data into metrics that actually answer specific organizational questions, rather than relying on out-of-the-box analytics.
He specializes in wrangling massive datasets with Apache Spark. Nikolai teaches other engineers how to build custom, type-safe User-Defined Aggregation Functions (UDAFs) to handle complex metrics that standard tools fail to capture.
