About Us

Taler Systems SA has been developing GNU Taler since 2016. Taler pursues the goal of digitalizing cash and
replicating the advantages of cash, but enhancing them with functionalities like built-in technical security,
payment safety, data minimization and privacy by design. Furthermore, Taler enables new online business
models especially those based on micropayments. Taler makes payment safe and easy, fully in accordance
with regulatory requirements, AML, KYC, and CFT regulations.

Taler Systems SA was founded in 2016 and is headquartered in Luxembourg.


Christian Grothoff and Leon Schumacher

Founding Proposals

One-click private digital cash payments and tokenization

Business Location

7, Rue de Mondorf, L-5421 Erpeldange, Luxembourg

Legal Form

Société Anonyme

Future Prospects

Revolutionize Payments with Privacy

Core Business

Financial Services
and related


Taler Systems SA is dedicated to free software and is one of the high priority projects at the core of the Free/Libre and Open Source Software (FLOSS) community. Thus, the company gains the interest of ambitious programmers in the field and gathers several GNU maintainers as team members. As a consequence, the company combines high-ranking competencies, programming skills, academic expertise and proven business knowledge to debut with a disruptive state-of-the-art solution that revolutionizes the payments industry.

Meet The Team

Taler Systems SA has four core team members.

Christian Grothoff


Christian is Professor for computer science at the University of Applied Sciences in Bern (Fachhochschule Bern) focusing on network security and privacy. He is an Ashoka fellow, serves on the GNU advisory board and maintains four GNU software packages. He earned his PhD in computer science from UCLA, an M.S. in computer science from Purdue University, and a Diploma in Mathematics from the University of Wuppertal.

Leon Schumacher

Chairman Of The Board

Leon is a leader in the international CIO community who possesses a deep knowledge of the needs and functioning of Fortune 100 companies. Prior to co-founding Taler, Leon served as group CIO at two global companies, Mittal Steel and Novartis. Leon earned his master’s in electrical engineering from ETH Zürich and his master’s in management from HEC Paris. He also has a post-MBA certificate from the Kellogg School of Management at Northwestern University.

Michael Widmer

Legal & Regulatory Affairs

Michael is an Entrepreneur and he brings to Taler his extensive banking and financial market experience. In his 20 years of experience in the international financial sector, he worked as a commercial lawyer, as managing director of the Eurex stock exchange and as Co-CEO of the Gutenberg Group. He received a Ph.D. in Law from the University of Zurich and an executive MBA from University of Rochester. Michael is also admitted to the Bar Association in Zurich.

Florian Dold


Florian is a passionate programmer and researcher. Prior to co-founding Taler, he worked on GNUnet, a decentralized and privacy-preserving peer-to-peer Framework. Florian earned his Master of Science from the Technical University of Munich. He obtained his PhD at Inria / Rennes 1 in this subject.


Join Our Team

Taler Systems SA is always looking for skilled programmers.

Backend Developer

  • Full Time
  • Anywhere

Junior Backend Developer

  • Full Time
  • Anywhere

Backend Developer

  • Full Time
  • Luxembourg

Junior Backend Developer

  • Full Time
  • Luxembourg

Contact Us Today

You can get into touch with Taler Systems SA via e-mail, phone or mail:

Reach Us

7, Rue de Mondorf, L-5421 Erpeldange, Luxembourg

Email Us

Get into touch with us via e-mail to

Call Us

Have a question?
Tel: +41 79 865 9365