2012-Present - Professor, Biological Systems Engineering, Virginia Tech 2005-2012 - Associate Professor, Biological Systems Engineering, Virginia Tech 1999-2005 - Assistant and Associate Professor, Civil and Environmental Engineering, University of Vermont 1995-1999 - Assistant Curator and Biosystems Engineering Section Leader, Patrick Center for Environmental Research, Academy of Natural Sciences of Philadelphia 1992-1995 - Doctoral Candidate and Research Engineer, Biosystems Engineering, Oklahoma State University 1989-1992 - Senior Environmental Engineer and NPS Modeling Coordinator, Virginia Department of Conservation and Recreation 1986-1989 - Assistant Scientist, USDA-Agricultural Research Service (Morris, MN) 2006 BSE Faculty of the Year, Alpha Epsilon Honor Society, Virginia Tech 2002 Fellowship, ASCE EXCEED Teaching Workshop 2001 Water Resources Association of PA, Achievement Award, Schuylkill River Watershed Plan 2000 Trailblazer, American Society of Agricultural Engineering, Discover Magazine 1996 Patrick Center Excellence in Program Development, Academy of Natural Sciences