Kilian was born in Nuremberg.
He studied law in Freiburg im Breisgau and Paris (France) from 2002 until 2007.
He completed his legal clerkship at the Higher Regional Court in Düsseldorf from 2008 to 2010. As part of his legal clerkship he worked at the Chamber of Tax Consultants, at a law firm specializing exclusively in economic and tax crimes and at the German embassy in Sarajevo (Bosnia and Herzegovina).
He was admitted to the bar in Berlin in 2010 and has been practicing as a lawyer in the field of criminal law ever since. Since 2017 he has been a partner at Galen Rechtsanwälte.
He is Co-author of the commentary on Commercial Criminal Law and Criminal Tax Law (2022 Nomos), editing a. o. §§ 30 ff, 130 OWiG (Act on Regulatory Offences).
Kilian Schaefer is a specialist lawyer for criminal law, lecturer for criminal law at Freie Universität Berlin and member of the Association of Berlin Criminal Defence Lawyers.