๏1976: Dipl. Eng. in Rural and Surveying Engineering, Aristotle University of Thessaloniki.

๏1977-1985: Founding member of the technical company "Geometriki" (Thessaloniki, Northern Greece).

๏1979: Extraordinary ad hoc designer in the National Service responsible for the compensation of earthquake damages in Northern Greece.

๏1980-1982: Tenure  ► Scientific collaborator in the Department of Geodetic Astronomy (Department of Rural and Surveying Engineering. Faculty of Engineering, Aristotle University of Thessaloniki).

๏1980: A' Class designer of  Surveying and Street planning.

๏1982-1984: Military service.

๏1984: Scientific collaborator in the Department of Geodesy - Department of Civil Engineering - Division of Geotechnical Engineering. Faculty of Engineering, Aristotle University of Thessaloniki.

๏1985: B' Class designer of  Surveying and Street planning.

๏1989: Dr. Eng. in Rural and Surveying Engineering, Department of Civil Engineering - Division of Geotechnical Engineering. Faculty of Engineering, Aristotle University of Thessaloniki.

๏1990 - 1994: Tenure ► Lecturer - Department of Civil Engineering - Division of Geotechnical Engineering. Faculty of Engineering, Aristotle University of Thessaloniki.

๏1994 - 2008: Tenure ►  Assistant Professor - Department of Civil Engineering - Division of Geotechnical Engineering. Faculty of Engineering, Aristotle University of Thessaloniki.

๏2008 - 2012: Tenure  ► Associate Professor - Department of Civil Engineering - Division of Geotechnical Engineering. Faculty of Engineering, Aristotle University of Thessaloniki.

๏2010 – 2011: Sabbatical at the Vienna University of Technology (TUW), Institute of Geodesy and Geophysics, Engineering Geodesy Group (from 1-10-2010 to 30-6-2011).

๏2011 – 2012: Director of the Division of the Geotechnical Engineering, Department of Civil Engineering. Faculty of Engineering, Aristotle University of Thessaloniki.

๏2012 – 2013: Director of the Division of the Geotechnical Engineering, Department of Civil Engineering. Faculty of Engineering, Aristotle University of Thessaloniki.

๏2013 - 2021: Tenure  ► Professor of Geodesy and Geomatics, Department of Civil Engineering - Division of Geotechnical Engineering. Faculty of Engineering, Aristotle University of Thessaloniki.

๏2021: Professor Emeritus, Aristotle University of Thessaloniki.