Professor, researcher and director of the Master's Degree in Procedural Law at Universidad Nacional de La Plata.

Since 2019, Oteiza is president of the International Association of Procedural Law (IAPL). From 2011 to 2013, he was president of the Asociación Argentina de Derecho Procesal and, from 2014 to 2018, of the Instituto Iberoamericano de Derecho Procesal.

He completed the Jean Monnet Fellow postdoctoral programme at the European University Institute (1987-1988) and was a scholar of CONICET (1987), of the Academy of European Law (1991), of the University of Bologna (1993), and of GIZ (Deusche Gesellschaft für Internationale Zusamenarbeit) (2013).

He was a member of the Advisory Council of Justicia 2020 programme of the Ministry of Justice and Human Rights of Argentina (2016-2019) in which he co-drafted the National Code of Civil and Commercial Procedure.

He was a visiting professor, among others, at the following universities: Bologna, Turin, Genoa, Brescia, Florence, York (Toronto), Pompeu Fabra (Barcelona), Medellín, Pontifica de Lima and the Max Planck Institute (Luxembourg). He received the "Enrico Redenti" award (2016).

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