[1][2] He then completed a master's degree in Islamic Studies at Leiden University in 2003.
He later obtained a PhD in Arabic Studies from the Free University of Berlin in 2012.
[1][2] Throughout his career, he has held various visiting professorships and research fellowships at prestigious institutions, including Columbia University, the University of Turin, the American University in Cairo, the Luxembourg School of Religion and Society, the Library of Congress, the Arab Center for Research and Policy Studies in Doha, and the Maria Sibylla Merian Center for Conviviality and Inequality in Latin America in São Paulo.
[1] Dayeh served as the academic director of the research program "Zukunftsphilologie: Revisiting the Canons of Textual Scholarship" from 2010 to 2023, and was the principal investigator for the project "Arabic Philology and Textual Practices in the Early Modern Period," funded by the Deutsche Forschungsgesellschaft from 2015 to 2019.
[1] He is also the principal investigator of the European Research Council Consolidator Grant project "Know: Polymathy and Interdisciplinarity in Premodern Islamic Epistemic Cultures," which investigates the interplay of various disciplines of knowledge during the postformative period between 1200 and 1800 CE.