- during my student time
- several occupations as tutor in computer science at University of Ulm, Germany
- from 2006 until 2008
Server and network administrator at rd Immobilien-Verwaltungen, Geislingen, Germany
- several occupations as tutor in computer science at University of Ulm, Germany
- during diploma thesis and doctorate at Institute of Quantum Matter at University Ulm, Germany
- Upgrading and testing of measuement software (C, C++)
- Server administrator for Linux server of out institute