Professor in the Department of Applied Mathematics and Statistics at Colorado School of Mines since August 2018
Directed the Data Science Master’s program from 2019 to 2023
Emeritus Senior Scientist at the National Center for Atmospheric Research (NCAR)
Director of NCAR's Institute for Mathematics Applied to Geosciences (IMAGe) from November 2004 to August 2017
GSP Project Leader at NCAR from August 1997 to June 2006
Faculty member in the Statistics Department at North Carolina State University for 14 years (1983–1997)
Worked at the National Institute of Statistical Sciences (NISS) on an EPA grant (1994–1996), where he wrote the first version of the Krig function (precursor to the fields R package)
Collaborates with Dorit Hammerling, Soutir Bandyopadhyay, and Will Kleiber on spatial statistics