Director, Baq'ah Valley (Jordan) Project & consulting scholar, research associate Near East University Pennsylvania Museum, Philadelphia, 1981. Research specialist MASCA (Museum Applied Science Center for Archaeology), University Pennsylvania Museum, 1979, senior research scientist Philadelphia, 1997—2009, science director, biomolecular archaeology laboratory, since 2009. Adjunct assistan professor Dropsie University, Philadelphia, 1982.
Lecturer anthropology and history Rutgers University, 1992. Visiting research scholar University Uppsala, Sweden, 1991, University Copenhagen, 1995, University Vienna, 1997. Adjunct associate professor anthropology University Pennsylvania, 1997.
Speaker in field; consultant and supervisor on several archaeological and scientific fieldwork.
- Author: (book) Uncorking the Past: The Quest for Wine, Beer, and Other Alcoholic Beverages, Ancient Wine: The Search for the Origins of Viniculture, 2003. Contributor over 100 articles to professional journals. Numerous international stories on ancient food, wine & dye, mounted exhibit on King Midas Feast, 2000, 4 feature films on ancient wine & King Midas funerary feast, 2001-2003.