During the 1980s, Park worked at California-based Callon Petroleum Company.[4] In 1983, Park served on the campaign staff for the then-Attorney General of MississippiWilliam Allain during his election to become Governor.[11] From 1985 to 1988, he was at Interpublic Group, an advertising agency.[4] In 1988, Park moved to Cohane Rafferty Securities,[4] where he became managing director, and then worked at Lehman Brothers after the latter acquired Cohane Rafferty in 2002.[5] He also served on the board of Southwest Security, the holding company of United Mississippi Bank.[4]
In 1999, he was appointed by the Clinton administration to the Federal Home Loan Bank of New York as Director, and remained in the position into the George W. Bush administration until 2002.[12][13] Park then went on to serve in other public positions in New York, including vice-chairman of the New York City Industrial Development Agency[5] and as a Commissioner of the New York City Commission on Human Rights.[14]
During his time as vice-chairman of the New York City Industrial Development
Agency, Park collaborated with Randy Levine, president of the New York Yankees, and David Cohen, executive vice president of the New York Mets, to fund the construction of two new baseball stadiums in New York City. Both the Mets and Yankees received debt financing for their stadiums, totaling $1.6 billion. In 2006, The Bond Buyer recognized Park's achievements with the Bond Buyer of the Year award, alongside Levine and Cohen for their involvement.[5][15]
In 2010, Park stepped down from his roles as Vice Chair at the IDA and at the NYC Capital Resource Corporation.[5]
^Park, Derek, Bryson. “1980 U.S. OPEN PANORAMAS.” U.S. OPEN-USTA National Tennis Center, New York-Special Centennial Edition (September 1–13, 1981); Page 152. Tennis Championships Magazine (Special U.S. Open edition Vol. 31 No. 8); Publisher: H.O. Zimman, Inc.; Copyright 1981 by H.O. Zimman, Inc.
^International Who's Who In Tennis; Library of Congress Catalog Card No. 83-050904; International Standard Book No. 0-9611296
^Tournament of Champions, Forest Hills, New York (May 2–9, 1982); WCT Official Magazine (VOL. 32/ NO. 4); Publisher: H.O. Zimman, Inc.; Copyright 1982 by World Championship Tennis Magazine.
^“Allain, Edwards Here Friday” The Natchez Democrat from Natchez, Mississippi-Page 1 [Vol. 119 No 349] Page 1D. December 15, 1983