at Silberturm on 22 Oct 2017

at solvians IT on 16 Nov 2016

at Cocomore AG on 22 Jun 2016

at sitewards on 18 May 2016

at bitExpert AG, Mannheim on 15 Apr 2016

at Silberturm on 12 Oct 2015

at triplesense on 16 Sep 2015

at cocomore on 20 May 2015

at sitewards on 18 Mar 2015

at Silberturm on 26 Jan 2015

at Frankfurt on 19 Nov 2014