Òscar is an associate professor at the University of Girona. He obtained his Ph.D. in Sociology from the University of Barcelona in 2007 and was Visiting Scholar in 2006 of the Center for Migration and Development at Princeton University, in 2012 of the Center for Comparative Studies in Race and Ethnicity at Stanford University and in 2017 at the Center for Evidence-Based Mentoring at UMASS Boston. He is also Principal Investigator of the RECERCAIXA research project APPLYING MENTORING: Social and Technological Innovations for the Inclusion of Immigrant and Refugee Populations.