How to reach us? 


[T] +43 650 8316400 (Manfred Aigner)


Yagoba GmbH

Beethovenstraße 20

8010 Graz, Austria


FN 395443 i, LG Graz

[UID] AT U67906288

Who is Yagoba?

Yagoba GmbH was founded in April 2013 in Graz, Austria, by three former university colleagues.


Since May 2013 we executed more than 45 projects to the full satisfaction of our customers. Our developments are regularly certified for electronic payment systems. We are known as reliable partner for highly efficient code that meets highest security and quality standards. Together with our clients we define the requirements, timelines, interfaces and functionality to work as reliable and independent partner.

Stefan Tillich, CTO


Stefan’s position at Yagoba is CTO (Chief Technology Officer), leading the product development and implementation. He is our expert for secure and efficient implementation. If you require support for payment applets (contact and contact-less application on cards or NFC modules), Stefan is the guy you need. In case you have performance problems with your Java Card applet running on a specific controller, talk to him.


Stefan studied computer science with an emphasis on security and digital hardware design. He worked as postdoc researcher at the University of Bristol in the team of Nigel Smart, and published around 50 articles about the design of security hardware, SCA analysis and protection, microprocessor architectures and similar topics in high-ranked scientific literature.

Thomas Popp, CSO


As CSO (Chief Science Officer) Thomas ensures that Yagoba stays ready for the future. Beside his activities together with our academic partners, he is responsible for development of our staff. Additionally he leads development of our test environment. As former patent consultant, he also covers all our innovation and IP topics.


Thomas studied computer science ("Telematik") with an emphasis on IT-security and digital hardware design of SCA-resistant crypto circuits. His focus during his PhD and postdoc research were SCA-resistant logic styles. Thomas is co-author of the "DPA Book": Power Analysis Attacks - Revealing the Secrets of Smart Cards. After his academic career, Thomas worked as a patent engineer and IP consultant at Anwälte Burger & Partner.  

Manfred Aigner, CAO


Manfred's position at Yagoba is CAO (Chief Administrative Officer). This means, he is responsible for nearly everything, except for tasks that have to do with development. Manfred cares for customers, contracts, and coffee. Additionally, he is responsible for application for funded research projects and makes sure that staff and management is happy and motivated. 


Manfred studied computer science with an emphasis on IT-security and digital chip design. His PhD thesis he dealt with security in the IoT. For eight years he led a research team at Graz University of Technology at the IAIK. After his academic career he worked as product manager in the semiconductor industry, became executive coach, and founded a consultancy for dissemination. 

Want to work with us?

We are hiring and in case you want to participate on our journey, send us your CV and answer the following questions:


1. Why do you want to join Yagoba?

2. What do you expect from your future at Yagoba?

How to send us

confidential information?

Whenever reasonable, we use PGP for confidential and authenticated communication via email. Try GnuPG or the last version the the PGP Freeware in case you do not yet use PGP. Send us your Public Key via Email and provide a published phone number for verification of the Fingerprint. We will call you for verification.

Stefan's Public PGP Key


Key ID: 5A78 86EB BEE6 9833

Fingerprint: 3EB7829A90E61CE405E4D2E55A7886EBBEE69833


asc File 1.4 KB

Thomas' Public PGP Key


Key ID: 3FA8 2FC2 73B1 32C1

Fingerprint: 061D39955955AADDC823E93C3FA82FC273B132C1


asc File 1.4 KB

Manfred's Public PGP Key


Key ID: 2ADA 5511 D9FA 9A1A

Fingerprint: CAB47FD333F9A548EE8DF9E02ADA5511D9FA9A1A


asc File 2.2 KB

Sandra's Public PGP Key


Key ID: 9CBA 2725 6036 059B

Fingerprint: 2207D7C4284E3448F47C6D1A9CBA27256036059B

asc File 3.1 KB

Karin's Public PGP Key


Key ID: 26024DAE7411836B

Fingerprint: 6F90D2630D47657F666299CA26024DAE7411836B

asc File 1.6 KB

Bernhard's Public PGP Key 


Key ID: A1B2 45B3 96F1 EF24

Fingerprint: 1B163A84B67A39019D03F619A1B245B396F1EF24


asc File 1.7 KB