| Mediation | |
| 2020 | Business mediation qualification at the Chamber of Industry and Commerce Frankfurt "Wirtschaftsmediatorin (IHK)"
final paper: Projektkrisen und Möglichkeiten der Mediation (PDF) (in German) |
| 2021 | Online-Mediation (IHK) |
Project Management | |
| 2006 | Certified Project Management Associate (GPM/IPMA Level D) | |
| 2010 | PRINCE2 Foundation Examination |
| 2013 | PRINCE2 Practitioner |
| 2016 | PRINCE2 Agile Practitioner (Certificate in Agile Project Management) |
IT Service Management | |
| 2003 | Foundation Certificate in IT Service Management (ITIL Foundation) |
| 2009 | Manager's Certificate in IT Service Management (ITIL v2)
(IT Service Manager, ITIL Service Manager) |
| 2009 | COBIT Basic Practitioner |
| 2011 | ITIL Expert (ITIL v3) |
| 2012 | Consultant/Manager Certificate in ITSM according to ISO/IEC 20000:2005 |
| 2012 | Professional Certificate Management and Improvement of ITSM according to ISO/IEC 20000-1:2011 |
| 2012 | Internal Auditor Certificate in ITSM according to ISO/IEC 20000-1:2011 |
| 2015 | TOGAF 9 Certified |
| 2015 | Foundation Certificate in IT Service Management according to FitSM |
| 2017 | Foundation Certificate in Information Security acc. to ISO/IEC 27001 |
IBM Certificates | |
| 1998 | IBM Certified Specialist - AIX 4.1 System Administration |
| 1998 | IBM Certified Specialist - AIX 4.1 Support |
| 1998 | IBM Certified Specialist - RS/6000 SP |
| 2000 | IBM Certificate of Proficiency - AIX 4.2 Installation and System Recovery |
| 2001 | IBM Certified Specialist - AIX V4.3 System Administration |
| 2001 | IBM eServer Certified Systems Expert - pSeries HACMP for AIX |
| 2001 | IBM Certified Advanced Technical Expert - RS/6000 AIX V4 |
| 2003 | IBM eServer Certified Specialist - pSeries AIX System Support |
| 2003 | IBM eServer Certified Specialist - p690 Technical Support |
| 2004 | IBM Certificate of Proficiency -AIX 5L Installation, Backup and System Recovery |
| 2004 | IBM eServer Certified Advanced Technical Expert - pSeries and AIX 5L |
| 2005 | IBM eServer Certified Specialist - p5 and pSeries Technical Sales Support |
| 2005 | IBM eServer Certified Systems Expert - pSeries Enterprise Technical Support |
| 2006 | IBM eServer Certified Specialist - eServer p5 and pSeries Administration and Support for AIX 5L V5.3 |
| 2007 | IBM Certified Systems Expert - eServer p5 and pSeries Enterprise Technical Support AIX 5L V5.3 |
| 2007 | IBM Certified Systems Expert - IBM System p5 Virtualization Technical Support |
| 2007 | IBM eServer Certified Systems Expert - pSeries HACMP for AIX 5L |
| 2007 | IBM Certified Advanced Technical Expert - IBM System p5 2006 |
| 2009 | IBM Certified Specialist - Power Systems Technical Support for AIX and Linux |
| 2009 | IBM Certified Specialist - System p Administration |
| 2009 | IBM Certified Systems Expert - Enterprise Technical Support for AIX and Linux |