2009-Present, Professor, Department of Biology, The University of Miami 2007-2009, Associate Professor, Department of Biology, The University of Miami 2005-2007, Associate Professor of Zoology (with tenure), University of Hawaii at Manoa 2005, The National Academies Summer Institutes on Undergraduate Education in Biology, University of Wisconsin-Madison 2004-2005, President, Sigma Xi University of Hawaii at Manoa chapter 2001-2005 Assistant Professor of Zoology, University of Hawaii at Manoa 1998-2000, Assistant Professor of Biochemistry and Molecular Biology, University of Texas M.D. Anderson Cancer Center. 1997-1998, Research Associate: Department of Biochemistry and Molecular Biology, University of Texas M.D. Anderson Cancer Center. 1993-1997, Postdoctoral Fellow: Department of Biochemistry and Molecular Biology, University of Texas M.D. Anderson Cancer Center 1993, Ph.D. in Zoology, University of California, Davis