Stephan studied classical cello and jazz cello at the universities in Hamburg and Berlin. He has performed in different projects with Schauspielhaus Hamburg, Berliner Ensemble, NDR-Bigband and he worked as a sideman with Melody Gardot, Nils Landgren, Gil Goldstein, Chris Hinze, Don Thomson, Till Broenner, Giora Feidman, Kristjan Randalu among others.
In 2010 he won the 1st price of the International Jazz Competition in Bucharest with his trio.
He played at many famous festivals and concert halls, like Vienna Opera House, Amsterdam Concertgebouw, Paris Olympia Theatre, Pori Jazz Festival, Toronto Jazz Festival, New Directions Cello Festival, Cello Akademie Rutesheim, North Sea Jazz Festival, Umbria Jazz Festival, Montreal Jazz Festival and recorded as a sideman more then 20 CD’s. As a leader he published 2 own records, one with his trio (called The Raid, released 2008) and one with his singer songwriter project deep strings (called Façon, released 2012).
Since 2014 he is teaching at the “Hochschule für Musik, Theater und Medien” in Hannover in Germany.