The Marine Engineering Society (MR ES) of General Sir John Kotelawala Defense University was established in 2020 by the Department of Marine Engineering. It serves as a platform to develop professional Marine Engineers, and to enhance the teamwork and leadership skills of the undergraduates. Since then it has been adding vivid experiences to the student life and a greater platform for the undergraduates by organizing guest lectures, workshops, competitions, social outreach activities, industrial day and exhibitions with the blessings of the university. These activities increase the creativity and soft skills of the students and facilitates the development of a Marine Engineer that responsible to the society.