web development
email list service eemaill.org
design, development, operation
since 2010
email list service lists.myhpi.de
a clone of eemaill.org for HPI students
design, development, operation
2012 – 2021
hotel broker Berlin – Brandenburg
consulting, support
since 2021
hotel consulting Berlin – Brandenburg
consulting, support
since 2019
Convention Hotel & Touristic Service Berlin - Brandenburg
consulting, support
since 2018
band Operation Zeit
design, development, operation
since 2011
website of Antiqua Potsdam
consulting, customization, maintenance
2014 – 2018
architect Katrin Seeger
consulting, design, development, maintenance
2010 – 2017
tax consultant Yvonne Leiter
consulting, design, development, maintenance
2007 – 2017
agency for qualified employees "accedera"
consulting, customization
2013 – 2015
band "Psychotrie"
design, development, operation
2008 – 2011