Agostina Migoni is currently a soloist in the ensemble at Volkstheater Rostock. In the 2025–26 season, she will appear as Zerlina in Don Giovanni, Chava in Anatevka, Alice Beineke in The Addams Family, Christel von der Post in Der Vogelhändler, La Colpa in Amadeus, and in the modern opera Tschick by Ludger Vollmer. Previous credits at the house have included covering Gretel in Hänsel und Gretel as well as performing Glinda and Böse Hexe in Der Zauberer von Oz and Frau des Professors in Der Steppenwolf.

During her time in Germany, Agostina has also performed at the Eduard-von-Winterstein-Theater, where she sang and covered roles including Adele and Ida in Die Fledermaus as well as Pamina in Die Zauberflöte. Additional engagements have brought her to Theater Freiburg and Stadttheater Pforzheim, and her performances have spanned the United States, South America, Europe, and the Middle East.

Agostina made her debut with The Dallas Opera as a Young Artist during the 2014–2015 season and went on to perform several roles with the company through 2017. Her repertoire learned during her studies includes Musetta in La Bohème, Abigail Williams in The Crucible, Valencienne in Die lustige Witwe, Noémie in Cendrillon, and Giannetta in L’elisir d’amore. While in graduate school, she also joined the Castleton Music Festival’s international tour of La Bohème at the Royal Opera House in Muscat, Oman, under the direction of the late Lorin Maazel.