He has been developing undergraduate and graduate teaching activities at the University of Chile since 1984; Also, he has been a professor at the Pontificia Universidad Católica de Chile; Universidad La República and Universidad Academia de Humanismo Cristiano, all of them in Chile. He has given courses and lectures at Chilean universities (Universidad de Tarapacá, Universidad Católica del Norte, Universidad de Talca, Universidad de Valparaíso); Latin American Universities (Universidad de Buenos Aires-Tilcara; Pontificia Universidad Católica del Perú; Univ. de la Cordillera-La Paz); and European and Asian universities (École des Hautes Études en Sciences Sociales-Paris; Univ. de Osaka; Univ. Nanzan-Nagoya).

He has been Director of the XX Century Archive (of the Directorate of Libraries, Archives and Museums); Director of the School of Anthropology, at the Academy of Christian Humanism University; Director of the Postgraduate School of the Faculty of Philosophy and Humanities of the University of Chile; Director of the Network of Doctoral Programs in Humanities and Social Sciences in Chile; Superior Advisor, for the area of Humanities and Social Sciences of the National Fund for Scientific and Technological Research (FONDECYT) and President of the same Superior Council. He has been Coordinator of the Master’s and Doctoral Programs in Latin American Studies at the University of Chile. He was, also, Commissioner of the National Accreditation Commission, an entity that certifies the quality of Higher Education institutions in Chile.

He has directed more than 50 Master’s and PhD theses and is the author of more than 100 publications, including books and articles, published in Peru, Bolivia, Chile, Mexico, the United States, England, France, Ecuador, Australia and Japan.
Since 1984 he has been conducting regular research in the areas of Andean ethnohistory and anthropology. Between 1983 and 1990 he worked as an associate researcher at the Chilean Museum of Pre-Columbian Art, where he was Academic Curator of various exhibitions with materials of American cultures from various countries of the continent.