Siegfried Zeilinger is a freelancer and managing director of a small management consultancy. His focus is on consulting and security auditing of IT systems as well as authorization and identity management for SAP. His consulting portfolio ranges from SAP architecture to development strategies for ABAP, Java, and the cloud to SAP identity management. In 2016, he received certification as an IT auditor (CISA). Most recently, Siegfried has worked primarily in the pharmaceutical industry and the public sector.Before becoming self-employed in 2011, he worked for SAP Austria as an SAP NetWeaver and portal consultant and carried out major international projects. Today, he regularly conducts training courses for SAP on the topics of authorizations, SAP in the cloud, and SAP NetWeaver. From 2003 to 2019, he supervised theses at the Vienna University of Technology and the University of Applied Sciences Wiener Neustadt and held various courses in the field of SAP.
