Konstantine Kashia graduated from Georgian Polytechnic Institute in 1984, Faculty of Civil Engineering, specializing in Civil and Industrial Engineering.

From 1977 to 1992 Konstantine Kashia worked at Mobile Mechanized Convoys of #2 Construction Trust first as a worker, later as a foreman and finally as a site manager. In 1992 he was appointed as the chief engineer of the 5th Specialized Construction Division of #2 Construction Trust. In 2002 - 2004 he was the chief engineer of Sameba 2 LTD. From 2004 to 2006 he was consultant at the company Gela Vanateli LTD. In 2006 - 2009 he held the position of the chief engineer at Architectural Construction Firm Alioni 99.

Starting from 2009 he holds the position of a site manager at Anagi Construction Company.