Hortensia has a degree in Literature and Languages from the Universidad Santiago de Cali and a Master’s degree in Ethnolinguistics from the Universidad de los Andes. Estrada is also an investigator of “Colombian languages (indigenous, Afro-diasporic, Roma and sign)” at the Caro y Cuervo Institute. She collaborated in the ethno-education program for the Sáliba community in the design of a practical spelling for writing the language and in training indigenous teachers in the grammatical study of the Sáliba language.