Cecilia Castagneto was born in Buenos Aires, the capital of Argentina. She began her musical training by attending the Universidad Católica Argentina (UCA) where she studied orchestral conducting with piano and violin as instrumental subjects. After graduating she worked for 3 years as assistant conductor to Direktor Carlos Calleja at the Teatro Colón in Buenos Aires.
In 2009 she went to Europe and continued her training by studying with Professor Rüdiger Bohn at the Robert-Schumann-Hochschule in Düsseldorf where, in 2012, she graduated with a Master in conducting, with Honours. Her teachers at this time were Peter Rundel, Arturo Tamayo and Rodolfo Fischer.
Cecilia Castagneto has a deep connection to contemporary music. She assisted Arturo Tamayo, Peter Rundel and Rüdiger Bohn and took part in the Münchener Biennale, the Berlin Festspiele, the European Workshop for Contemporary Music (EWCM) as well as the Akademie der Künste in Berlin.
She has won prizes from the Lions Club and the DOM Foundation, also scholarships from the DAAD (Deutscher Akademischer Austauschdienst - German Academic Exchange Service) and the Maria Marta Sanchez de Nunez Foundation.
2012-2016 was co-founder and artistic director of the Octans Ensemble. During this time she conducted all the productions which included music by Wagner, Mahler, Poulenc, Debussy, Stravinsky, as well as first performances of works by young composers. The Ensemble was nominated for the Förderpreis Düsseldorf 2016.
She has been working since June 2013 with the Duisburg Philharmonic Orchestra and is guest-conductor with several orchestras in Europe and Argentina.