Bernd Sieberg is Professor of Linguistics at the German Department of the Faculty of Letters, University of Lisbon, where he has taught several disciplines in graduate and postgraduate courses in the past 30 years. In 1980, he graduated at the University of Bonn in Germany and in 1983 he got his PhD with a thesis on the use of "Perfekt and Imperfekt in German spoken language", whose equivalence to a Portuguese PhD was granted in 2002.

As member of the Center for German and European Studies, he co-organized the conferences "Questions on the Linguistic Sign" (2005) and "Questions on Language Change" (2006). He participated at several national and international conferences and published articles on Spoken German and Portuguese language and their impact on New Media.

He is currently a member of the CECC research line Translating Europe Across the Ages, where in 2009, together with Mario Franco, he organized the conference “Proximity and Distance in Language and Culture” and in 2012, together with Verena Lindemann, António Chenoll and Mario Franco, the conference »Speaking: teaching oral communication skills in foreign languages«. The books with the same titles were published in 2011 and 2014.

He recently (2013) wrote a manual about teaching Spoken German and his next project aims to invite experts from different scientific areas and languages to reflect on "teaching foreign spoken language at high school and university levels".

Bernd Sieberg continues his investigations on the grammar of spoken German and Portuguese language.