David Halperin joined the Hong Kong office of Orrick in 2005 and remained a partner of the firm until the firm closed its Hong Kong office in August 2020. He continues to be a Senior Partner of the firm.

Before attending law school, David served as an officer in the U.S. Navy from 1966-1970, rising to the rank of Lieutenant Commander (U.S.N.R.) and serving from 1969-70 as a Special Assistant to Admiral E.R. Zumwalt, Commander of Naval Forces, Vietnam and later Chief of Naval Operations. From 1970-1971, he served as Personal Assistant to Dr. Henry Kissinger, Assistant to the President for National Security Affairs. After law school, David joined Davis Polk & Wardell in New York from 1974-1976 before moving to the Hong Kong office of Coudert Brothers in 1976. He became a partner of Coudert Brothers in 1983 and joined the Hong Kong office of Orrick in 2005. He remains as a Senior Partner of the firm.