Harry Theoharis has worked during his career as a high level executive  of both large organizations and start-ups. He holds a MEng in Software Engineering(Hon - 1993) from Imperial College of Science Technology and Medicine, London. He is experienced in designing analysis and implementation of large software systems. He has been a vice-president of Lehman Brothers, London, heading the European Equity Volatility Technology group. As CIO of Aspis Pronia Insurance, he worked in sourcing and contract management, process optimization, and selective introduction of outsourcing.
With project- and systems- management experience, budgeting and controlling as well as cost cutting initiatives, he has been a special Advisor to the then Secretary General of Information Systems, Prof. Diomidis Spinellis since November 2009 until recently. In his tenure he oversaw the implementation of significant projects, including the establishment of the Single Payment Authority and the Civil Servant Census. For a brief stint before his selection as the SGIS, he worked as a Special Advisor to the Secretary General of the Ministry of Finance working on the MOU-MEFP progress monitoring.