Sotiris Sideris is a data journalist, trainer, and project manager with extensive cross-border and collaborative experience.

He is the data editor of Reporters United and the Center for Collaborative Investigative Journalism (CCIJ), and co-founder of AthensLive. He also serves as a lecturer of digital media at Macromedia University of Applied Sciences in Berlin  and as a research associate in the NTLab at the University of Athens. Previously, he worked with the Greek NGO Network for Children’s Rights as the coordinator and chief editor of the multilingual newspaper Migratory Birds, and as a researcher and producer for the Greek national TV documentary series 28 Europe.

In 2017 he was a Stavros Niarchos Foundation fellow at Columbia University, where he studied programming and data journalism. In 2019 he participated in the Bertha Challenge, a global fellowship program for investigative journalists and activists by Bertha Foundation.