Chamika began his architectural career at MICD Associates and continues to practice at the firm as a Senior Associate. In 2016 he embarked on his own practice as the Principal Architect of C Atelier Consultants and CDA Associates. He has worked on numerous architectural and restoration projects of which one was the recipient of the Conde Nast Johansens Award for Excellence in 2020 – 21. He has also been involved in several curatorial projects in Sri Lanka including the exhibitions Second Skin in March 2017 and Revive; Ethical Use of Material in June 2017 in collaboration with the Colombo Fashion Week. In 2019 he also curated One Won in collaboration with the University of the Visual and Performing Arts, Colombo in the aftermath of the Easter Attacks in Sri Lanka He is a Trustee of the Geoffrey Bawa Trust and the Lunuganga Trust.