Eleftherios is a lawyer admitted to practice in Greece, and co-founder of the Greek civil society organisation "Homo Digitalis", which is an observer member at the European Digital Rights (EDRi) network. Moreover, he works as a research associate at the Centre for IT & IP Law (CiTiP) of KU Leuven. Eleftherios holds a LLB from National and Kapodistrian University of Athens, a LLM on Law and Technology from Tilburg University Law School and a MSc in Digital Humanities from the Computer Science School of KU Leuven with courses on Programming Languages, Web Information Systems, Human-Computer Interaction, and Linked Open Data, amongst others.