Salvarezza was president of the National Scientific and Technical Research Council (CONICET) from 2012 to 2015, and then served as a member of the Argentine Chamber of Deputies from 2015 to 2019 representing Buenos Aires Province, sitting in the Front for Victory bloc.

[1] In 1981 he finished his PhD in the same university; his dissertation was titled "The microbiological corrosion of aluminium and alloys in water-combustion systems" (Spanish: "Corrosión microbiológica del aluminio y aleaciones en sistemas agua-combustible").

[2] In 1992 he founded the Nanoscopy Laboratory of the Theoretical and Applied Physicochemical Research (Spanish: Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; INIFTA) at the National University of La Plata.

Salvarezza received the backing of the Directive Council of the UBA Faculty of Exact and Natural Sciences,[6] the World Federation of Scientific Workers[7] and the CyTa group.

[8] In June 2017 Salvarezza was selected to go second in the Citizen's Unity Chamber of Deputies candidates party list in Buenos Aires Province in the 2017 legislative election, following Fernanda Vallejos.