During his career, he was the chief of the Architectural Guild for the School of Architecture and Fine Arts at University of Southern California, the founder and chairman of Gin Wong Associates, and the president of William L. Pereira Associates. He was known as the designer of numerous buildings and centers in Southern California and the Pacific Rim: LAX Theme Building; the Atlantic Richfield Company (ARCO) Headquarters Building in Downtown Los Angeles; the Columbia Broadcasting System Television City; the Crean Tower and Mary Hood Chapel on the Crystal Cathedral campus; the Jack Colker's 76 Station in Beverly Hills; Hyatt Regency International Airport in Inchon, Korea; and the Pan Pacific Tower in Honolulu, Hawaii.