Karsten Matthieß was born in Friedrichroda (Thuringia, Germany). From 2000 to 2005 he studied law at Passau University after which he moved to Hesse. Here he completed his legal clerkship before and during which he gained initial experience as a trainee lawyer/research employee in two large international law firms.

Karsten Matthieß has been working as a lawyer specialising in employment law since 2009. He started his career in Frankfurt am Main and moved to Dresden in August 2010. From 2009 to end 2013 Mr Karsten Matthieß worked for the international Noerr law firm. He advises mid-sized companies in all matters relating to employment law and also has specialist experience in advising technology companies.