Professor, Department of Computer Science,
2008-2015, Assistant Professor, Department of Computer Science, City
2007-2008, Staff Programmer/Researcher, Department of Computer Science, the University of Calinforna, Davis.
2004-2007, Research Assosciate, Long Term Ecological Research (LTER) Network Office, Department of Biology, the University of New Mexico.
Assistant, Cooperative Institute for Mesoscale
Meteorological Studies (CIMMS), the