Konstantinos Giannakos is a leader in the field of railway engineering, with pioneering research in various systems.
He counts more than 20 years of research including laboratory tests, on-the-field surveys and theoretical analyses. All his theoretical approaches have been verified by observations and measurements on railway lines in circulation. He has numerous publications in scientific journals and conferences, has participated in several committees of the European Union and in the period 1999-2001, as a representative of Greece, he participated in the preparation of Technical Specifications Interoperability/TSI's, on the high-speed rail infrastructure of the European Union and signed the official text.
From 1998 to 2002 he served as General Coordinator in the High Speed group for Southeastern Europe, the International Union of Railways/UIC and from 2002 to 2006 he was CEO and Vice President (2002-2003) and Chairman (2003-2004) of OSE (including the period of the Athens Olympic Games 2004). He was Visiting Professor and Lecturer of Railway Engineering at the University of Thessaly, at School of Civil Engineering in Volos, for the period 2007-2014. In addition, since 2002 he has been teaching at the Interdepartmental Postgraduate Department of Transport at the Polytechnic School of Aristotle University of Thessaloniki, and has been a consultant in various Greek and international technical companies since 2006.
Since 2010 he has been a member of the AR050 & AR060 Committees for the design and maintenance of the railways of the Transportation Research Board/TRB (member of the Science Academies in the U.S.A.). He has been selected twice (2011 and 2012) as a prominent arbiter of the Journal of Transportation Engineering of ASCE. He is a member of editorial teams of scientific journals in his field. As guest editor of the International Journal of Pavement Engineering/IJPE, he issued the special edition/issue of the magazine for High Speed Railway Infrastructure, which was released in 2010.
His interests in research include the archaeology of the second millennium BC and the technology of ancient Greece. He is a member of the Society for the Investigation of Ancient Greek and Byzantine Technology (ΕΔΑΒυτ) and of the the company AIGEUS for the prehistoric Aegean. He has published several articles in conferences and in archaeological journals. In 2012 his book entitled "Technology, sources and dating of the Trojan War" was published in English language by Lambert Academic Publishing, in Germany. The Greek version of the book was released in 2016, by Papazisis Editions.