Sotiris Sideris is a data-driven investigative journalist and trainer, and the data editor of the Center for Collaborative Investigative Journalism (CCIJ) and of the investigative network Reporters United. He also serves as a research associate at the University of Athens and as a lecturer of digital media at Macromedia University of Applied Sciences in Berlin. His work has been published in Investigate Europe, Tagesspiegel, and Mediapart, among many publications, and has earned international recognition from organizations like the European Press Prize, the INN Nonprofit News Awards, the Sigma Data Journalism Awards, and the IJ4EU Impact Award. The co-founder of AthensLive, Greece’s first nonprofit media outlet, he has worked full-time for the Greek NGO Network for Children’s Rights as the coordinator and chief editor of the multilingual refugee newspaper Migratory Birds, and as a researcher and producer for the Greek national TV documentary series 28 Europe. Sotiris has participated in fellowships about housing and land injustice, data journalism, follow-the-money financial journalism, and online investigative techniques.