He was born in Salto Grande, a town in the Province of Santa Fe, in 1967. He completed his undergraduate studies at the National University of Rosario and in 1992 moved to New York (USA) to participate in the General Studies in Photography program. at the International Center of Photography.

After that experience, he returns to Rosario and begins to work on a long-range project in which he will dispense with the camera, experimenting with contact prints and projections of objects on sensitive material. In the exhibition Ritual de lo habitual (Cultural Center Bernardino Rivadavia, Rosario, 1994) he presents the first works of this process. For this work, she was invited as part of the Argentine submission to Les Rencontres Internationales de la Photographie (Arles, France) in 1996 and to the I Mercosur Biennial (Porto Alegre, Brazil) in 1997. In the same year, she obtained a subsidy for creation of the Antorchas Foundation and the First Mention in the Braque Prize. In 1998 he made two solo shows: Fotogramas, in the Photogallery of the General San Martín Cultural Center, in Buenos Aires, and Conciso, succinto, precise, in the Bernardino Rivadavia Cultural Center, in Rosario.

Between 1997 and 1999 he participated in the Kuitca Scholarship. Part of the production of these intense years is exhibited in the Ojo al País exhibition (Borges Cultural Center, Buenos Aires, 1999). Shortly after, he traveled to the US to pursue postgraduate studies in Fine Arts at New York University, subsidized by a Fulbright/National Endowment for the Arts scholarship. In 2001, he returns to the country; the following year he receives the Merit Diploma from the Konex Foundation.

Research on the photographic medium, its conditions, limits and possibilities has been the main axis of his projects. 

11 combined operations (Diego Obligado Art Gallery, Rosario, 2019), Person (Kirchner Cultural Center, Buenos Aires, 2018), Affaire (Ricardo Rojas Cultural Center, Buenos Aires, 2017), +room (Rosario Museum of Contemporary Art, 2016) and Capturas de Pantalla (Mal de Archivo, Rosario, 2016) are among his most recent solo exhibitions. In 2018, Ediciones Diego Obligado presents a monographic book on his work: Andrea Ostera. Obras/Works 1994-2017.

His artistic practice extends beyond the production of works: since 1998 he has been teaching and managing at the Manuel Musto Municipal School of Plastic Arts; between 2005 and 2010 she was curator of the Emerging Photography program, at the Center for Contemporary Expressions (CEC), Rosario; From 2005 to 2013, he worked on the enhancement of the negative archive of the Museum of the City of Rosario. Since 2019, Camarada has been a member, a group in charge of Little Library – Photography Publications in Rosario and Amateur Archive.