Davis Sebastian graduated in Mechanical engineering from Bangalore University in 1984. In 1995, he joined Richardson and Cruddas, a public limited company as the engineer Production to start the carrier.
In 1988, he went to IHI, Tokyo for training in welding technology. Later he Joined Kumamoto Gakuen University in 1990 for the Diploma program in Management. In 1992 he joined the dream company, Nihon Kensetsu Kogyo, as an Engineer on projects in Thermal Power Plants.