Upon graduation, David has been involved with the Development of Putrajaya while engaging design with Hijjas Kasturi Associates (HKA), an International Architectural Firm by its standard. Later, he moves to smaller establishment to hone his skill in traditional “bread and butter” practices, owing to the needs for him to pass the Practical Professional Experience Examination, commonly known as Part 3 of the Board of Architect Malaysia Professional Examination. Having completed multiple mass housing projects, he is promoted to be Senior Project Architect, overlooking several luxury high rises in the Klang Valley and by then he is attached to another mid size Architectural and Town Planning firm in style of Garis Architect Sdn Bhd. It is this untiring labor that has earned him the recognition as a full-fledged Professional Architect from the Board of Architect Malaysia, in a single sitting, enabling him to be the submitting and qualifies person for Building Submissions within Malaysia. He is elected as a corporate member to the Institute of Architects (PAM) and Interior Design Malaysia (IPDM).
To fuel his inspiration in Design, he occasionally lectures Design in the local Architectural Colleges as visiting lecturer and critique. He was also tasked to lead the graduating class design studio at Taylor’s College. As the result of his involvement, his studio has managed to break unprecedented achievement in the model of productions from within and beyond the studio wall.