Peter Gietz is co-founder, co-owner and CEO of DAASI International and has been active in the field of information technology since 1985. He is internationally recognised as an expert for directory services.
Find more information about Peter Gietz here.
Sophie Bauer is studying law at the University of Tübingen. Since November 2018, she supports the team of DAASI International as a working student.
Marla Diez is a trained retail clerk and has been supporting DAASI International since March 2025 as an assistant in the areas of administration, HR, finance and accounting.
Dr. Steffi Dobretzberger holds a degree in biomathematics and a doctorate in computer science. After many years as a software developer in finance, she has been working as a full-stack developer at DAASI International since 2024.
Jessica Duffka is a certified office clerk. She joins the DAASI International team in October 2023 as assistant to the management and member of the marketing team.
Marc Füller received his degree in business informatics from the DHBW Ravensburg, ever since he has worked as a system administrator, consultant and software developer in various fields of IT since 2011. He joined DAASI International as a consultant in May 2021.
Jonathan Gietz started his career at DAASI International back in 2013 as a working student. He completed his Master’s degree in Computer Science at the University of Tübingen in 2024 and has been supporting the team as a Solutions Engineer ever since.
As co-founder and co-owner of DAASI International GmbH, Karin Gietz is responsible for the areas of administration, HR, finance and accounting. Further she is an authorised officer.
Markus Götz successfully completed his Master’s degree in Business Administration in Bamberg in 2017. Afterwards he worked as a Scrum Master and Product Owner in different software companies in Munich and Würzburg. He has been supporting DAASI International as an agile coach since 2024.
Beyda Güler received a degreee in Medical Technical Informatics from Reutlingen University. Since February 2019 she supports DAASI International in the field of system administration.
Ali Haider did his Master in Computer Science. While pursuing his studies, he joined DAASI International in 2016 as a Frontend and Backend Developer. He has expertise in Java, Python, and various IdM standards and protocols. Throughout his career, he has worked on the implementation of various enterprise applications in the financial and Identity & Access Management domains.
Kevin Herbst began his IT career in 2017 working in online marketing, where he also learnt programming. From 2023, he eventually moved into software development. Since August 2024, he has strengthened the DAASI International team as a DevOps Engineer.
Dr Martin Hitschel studied computational linguistics and computer science. He joined DAASI International at the beginning of 2006, initially working on research projects. Martin Hitschel is a recognised expert in Shibboleth and is responsible for consulting, training and support activities in this area.
David Hübner studied Computer Science for Media in Stuttgart and Tübingen. He wrote his master thesis about Shibboleth at DAASI International. Since 2017 he has mainly been responsible at DAASI International for the EU-research projects AARC as well as SSO projects with Shibboleth, Gluu and didmos. Since mid 2023 he also is an authorised officer.
After training as an IT specialist, Pascal has worked in the areas of hardware and infrastructure management, network and system administration since 2012 and most recently worked as a team and project manager in the IT sector. Since 2023, he has been supporting DAASI International in the area of system administration with a focus on DevOps and realising projects in the SSO area relating to Shibboleth, Keycloak and MFA.
Daniel Konzalla studied Media Informatics at the University of Tübingen and successfully completed his Master’s degree in 2021. He subsequently worked in IAM as a data scientist and machine learning engineer. Since 2024 Daniel works as a Solutions Engineer at DAASI International.
Markus Lude studied Computer Science at the University of Tübingen. After many years as a systems engineer at a system house, he has been working as a system administrator for DAASI International since September 2019.
Nasim Niyar obtained her master’s degree in 2022. After getting trained and oriented as a developer, she began an internship at DAASI International in November 2023. Since March 2024, she supports the team as a junior backend developer.
Pia Schäfer has started her studies in Computer Science in 2016 and has been supporting DAASI International since then in the field of system administration and software QA.
Werner Schledorn has joined DAASI International as a system engineer in June 2022. Werner contributes over twenty years of professional experience, which he was able to gather at various stations and over many years of self-employment. His expertise encompasses both hardware and software; he is especially well versed in all subjects relating to operating systems and virtualisation environments.
Benedikt Schnabel studied Mathematics and Computer Science at the University of Tübingen. He joined the team of DAASI International in January 2016. Since then, he has been responsible for frontend development and the GUI of didmos LUI as well as the conception and implementation of the current website of DAASI International.
Jennifer Vosseler studied German Literature and Media Science at the University of Tübingen and is a member of the team of DAASI International since April 2017. At home in our marketing department, she is responsible for the planning, implementation and communication of our marketing strategy.
Markus Widmer studied Computer Science at the University of Tübingen and completed his diploma thesis on Role-Based Access Control at DAASI International. Since 2005, he has written large proportions of didmos and other products of DAASI International. He is procurator, Head of Hosting and Support Department, expert in OpenLDAP, RBAC and SPML, and has the technical responsibility in many IAM projects.
As a graduate of Computer Science, Tamim Ziai can look on decades of IT experience, with particular expertise in software design, Java frameworks and quality assurance. He joined DAASI International as a Senior Consultant in 2011.
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