He has been
– Rector, National Technical University of Athens (N.T.U.A.)
– Dean, Civil Engineering Department N.T.U.A.
– Professor N.T.U.A.
– Director, Laboratory of Harbour Works, N.T.U.A.
– Chairman, Technological Park of Lavrion
– Chairman, Governing Committee, University of West Attica

– Secretary General of Harbours, Ministry of Merantile Marine
– Chairman, Regulatory Authority of Harbours