Marios Demetriades graduated from the University of East Anglia in 1993 with a First Class BSc in Business, Finance and Economics. He held various positions at Piraeus Bank in Cyprus and served as a Non-Executive Director of FxPro.
From March 2014 to March 2018 he was Cyprus's Minister of Transport, Communications and Works under President Nicos Anastasiades, succeeding Tasos Mitsopoulos and later succeeded by Vassiliki Anastasiadou.
He gave the keynote address at Mare Forum Greece in 2017 and the 5th Mare Forum Cyprus forum in 2016.