Departamento de Humanidades Tecnológico de Monterrey  

Department of History University of the Incarnate Word

Director, Instituto Universitario de Investigación en Estudios Norteamericanos (IEUN) Universidad de Alcalá

Department of History Indiana University-Purdue University Indianapolis

Department of English Director, Center for Mexican American Studies University of Texas at Austin

Dean, College of Arts and Sciences University of Central Florida  

Department of Modern Languages Carnegie Mellon University

Department of Ethnic Studies University of California, Berkeley

Mexican American and Latina/o Studies University of Texas at Austin

Independent Scholar