Joachim has his law office in Hamburg and is shareholder of e-Gerlink.
His business career he started 1998 as assistant of Dr. Wolfgang Schaeuble, Chairman of the Christian Democratic Union.
After a station in the Federal Association of the German Employers Federation (BDA) he became Legal Counselor of the Media Consultancy WMP EuroCom AG.
In 2002 he moved to Athens and managed during the Olympic Games 2004 the accommodation area of the German Olympia Team, a Media center and other institutions.
In March 2005 he started the Business Development of HOCHTIEF Hellas with the main focus on Facility Management. In 2009 he became Managing Director until 2015.
He is an active member of the board of the German Greek Chamber of Commerce and of Ashoka Greece.