Olga Tsakalidou is working at the Informatics and Telematics Institute of the Centre for Research and Technology, Hellas since 2000. She has worked at the Department of Education and Training of the Prefecture of Thessaloniki (1993), in the Marketing Department of a cosmetic and parafarmaceutical products company (1994-1995), in the Customer Service department of a Courier and Logistics company (1996-1999).