He is a professor at the Central European University in Vienna, Austria.
He is one of the leading experts on Dionysius the Areopagite and the Saint Thomas Christians of Kerala.
[1] Since 2000 he has led a project to explore and digitalize the Syriac and Malayalam manuscripts of the Saint Thomas Christians in South India.
[2] He has initiated the study of Classical Syriac as a modern Indian lingua franca and of Garshuni Malayalam.
According to his university profile, he knows Ancient Greek, Latin, Classical Syriac, Garshuni Malayalam and Church Slavic, speaks Hungarian, English, French, Modern Greek, Russian, Italian, German and Ktobonoyo and has a working knowledge of Hebrew, Malayalam and Old Portuguese.