July 2007-present: Chair, Department of Ocean and Resources Engineering
1986-present: Hawaii Undersea Research Laboratory (HURL), School of Ocean & Earth Sciences & Technology, University of Hawaii at Manoa, Honolulu, Hawai‘i, USA. (1990-Present: Acting Director; 1992-2002: Associate Director; 1986-1990: Researcher)
1983-1986: Ocean Resources Manager, State of Hawaii, Ocean Resources Branch, Honolulu, Hawai‘i, USA
1978-1983: Research Assistant/Lecturer, University of Hawaii at Manoa, Department of Oceanography, Honolulu, Hawai‘i, USA
1973-1977: Exploration geologist doing field season and contract work for Chevron, Union Oil, Petro Canada, Noranda Mines and McIntyre Mines, looking for oil and base metal deposits.