2010 - present: Department Head, Department of Plant Sciences, North Dakota State University, Fargo, ND
2002 - present: Professor, Department of Plant Sciences, North Dakota State University, Fargo, ND
2001 - present: Coordinator, North Dakota Malting Barley Improvement Program, North Dakota State University, Fargo, ND
1997 - present: Adjunct Professor, Department of Cereal and Food Sciences, North Dakota State University, Fargo, ND
1994 - 2001: Associate Professor, Department of Plant Sciences, North Dakota State University, Fargo, ND
1988 - 2001: Project Leader, Six-row and Two-row Barley Breeding and Genetics Program, North Dakota State University, Fargo, ND
1988 - 1994: Assistant Professor, Department of Plant Sciences, North Dakota State University, Fargo, ND