- Professor. University of Puerto Rico, Mayagüez Campus, Agricultural Economics & Rural Sociology Department, August 2007 -present.
- Community Resources Development Leader. University of Puerto Rico, Mayagüez Campus, Agricultural Extension Service, September, 2013 – August, 2017
- Assistant Professor. University of Puerto Rico, Aguadilla Campus, Department of Social Sciences, August 2000 – July 2007.
- Instructor. University of Puerto Rico, Mayagüez Campus, Department of Social Sciences, August 1997 – May 2000.
- Lecturer. State University of New York at Binghamton, Latin American and Caribbean Studies Department, January – May 1997.
- Translator. Cornell University, Division of Nutritional Sciences, August – December 1996.
- Ethnographer. Cornell University, Division of Nutritional Sciences, January – December 1995.
- Lecturer. State University of New York at Albany, Department of Latin American and Caribbean Studies, August 1991- May 1992.
Adjunct Instructor, Purdue University, Spanish Department, January – December 1990