	Weerasinghe taught music in D. S. Senanayake College, Senananda Maha Vidyalaya Meepilimanna and Ananda Sastralaya, Kotte as a government music teacher. In 1982, he joined "Sing Lanka" studios as a Sound Engineer. At that time, he composed T. M. Jayaratne's "Ekasitha dethanaka", "Hiruta Horen" and Neela Wickramasinghe's "Punchi Sithe Punchi Sina" which became popular songs in Sri Lanka.