Theodoros Chatzistamatiou was born in Athens on 3-7-1949. He is a graduate of the Department of Mathematics of the University of Athens (1973) and EKEFE Demokritos (degree in Analysis and Planning, 1973), while in the period 1975-1976 he studied analysis and programming. He has extensive professional experience in the field of informatics both in the private and in public sector, from 1975 to date. In 1977, he served as Payroll Chief at the General Staff of the Navy of the Ministry of National Defense, being responsible for planning and analysis. In the period 1990-1993 he was the managing director of the public limited company under the name Hellenic Informatics Systems SA, a subsidiary of ETVA and, taking over the position of manager of the Mediterranean Integrated Program (MOP) of Technology, has succeeded in absorbing the MOP to rise to 97% within two years (from 13%). In 1993, he served as secretary of the General Secretariat of Information Systems of the Ministry of Finance. In the period 1994-1999, he held the position of director in the Hydrographic Service. In the period 1999-2006, he was the Chairamn of the company ISHYS SA. In the period 2000-2012, he was the Chairman and CEO of Master Hellas Consulting SA. In the period 2009-2013, he was Chairman of the board of directors of DEFKALION SA. He is the author of the book: "Learning COBOL Language" (1982) and his articles have been published in sectoral and daily press (1983-1992). He also has many years of educational experience in informatics, as in the period 1981-1987 he was a professor of computer languages at the School of Computer Developers of the Ministry of National Defense. He has participated in a number of complex IT projects. He is fluent in English. Since 17-03-2016, he was an independent non-executive member of the Board of Directors of Space Hellas.