She received her doctorate at the Max Planck Institute for Psycholinguistics at Radboud University Nijmegen from 2000 to 2005.

Her dissertation was entitled Disfluency: Interrupting speech and gesture.

[5] After another short stay at the Max Planck Institute, Seyfeddinipur moved to the School of Oriental and African Studies (SOAS) at the University of London in 2010, where she became head of the Endangered Languages Documentation Programme,[6] which has been awarding grants for the documentation of endangered languages worldwide since 2002, financed by the private Arcadia Foundation.

[8][9] Seyfeddinipur moved with the Endangered Languages Documentation Programme to the Berlin-Brandenburg Academy in 2021.

[8] She is also involved in work on the preservation of poetry and other literature in endangered languages.