Xenofon Chatziliadis is a Ph.D. candidate at DIMA group (TU Berlin). He is part of the development team of NebulaStream, a novel stream processing engine (SPE) that enables data processing on edge devices. Xenofon's research area includes performance monitoring, and operator placement for geo-distributed SPEs. He received his M.Sc. in Computer Science at TU Berlin with a focus on machine learning.