Mr. L. M. D. Dharmasena has served in the Sri Lanka Education Administrative Service as a Deputy Principal, an Assistant Director of Education (Policy Planning), a Deputy Commissioner of Examination, a Principal, a Director of Education, a Chief Commissioner since 1988 and is currently holding the position of the Additional Secretary (School Affairs) of Ministry of Education.
He has more than 32 years experience in the field of general education. He served as a Deputy principal of Rajasinghe M.M.V., Hanwella and the Principal of Siri Piyarathana M.M.V., Padukka, Ananda College Colombo 10 and Mahanama College, Colombo 03.
Mr. L. M. D. Dharmasena is a Bachelor of Science (Bio Science) graduate of University of Sri Jayawadhanapura and holds a Post Graduate Diploma in Education from the Open University of Sri Lanka and a Master degree in Education from University of Colombo. He also holds a Post Graduate Diploma in Education Management from University of Sri Jayawardanapura and a Master degree in Education from Brock University, Toronto, Canada.