Fink worked for several years doing administrative labor and teaching preschool. Alongside illustrator Pitu Saá and designer Martín Azcurra, Fink founded the
independent publisher Chirimbote, which, along with
Sudestada, published the first three titles in the
Anti-Princess Series in 2015. Fink, Saá, and Azcurra sought out female figures in Latin American history whose stories they could tell to counter narratives they found harmful in older
fairy tale and more recent princess narratives, such as those of
Disney Princesses. Fink has also written a third series, the
League of Anti-Princesses, in which historical figures from the other series join forces. As part of a collaboration between Chirimbote and Las Juanas Editoras in 2016, Fink edited the volume (
#Not One Woman More from the Early Years), an academic work about
gender equality responding to the
Ni una menos movement, in which she also authored a chapter about generation of gender stereotypes through film and literature. In 2018, Fink and Laura Rosso compiled a number of stories about young people's experiences with gender, gender identity, gender roles, and gender stereotypes into a 224-page illustrated book called
Feminism for Youths: Now They See Us, published by Chirimbote. The company, whose focus tends to be works on feminism, women's rights, and LGBTQ rights, has also published several books dealing with
transgender identities for young people. Fink stated in 2016 that she felt she could never devote her life solely to children's literature. While working with Chirimbote on the picture book series, she continued to write and edit for the online Argentine news site
Marcha. ==Personal life==