Stefan has extensive experience in the financial sector. He has been working for ABN Amro and the Royal Bank of Scotland, where he was part of major projects such as migrating to a new core banking system and implementation of the internet banking application.

He was, until recently, part of Innovation team of Societe Generale European Business Services shared service center and starting with October 2017 decided to focus more on developing the ARK blockchain platform, which now takes most of his time, together with Persona. In his free time, he learns about dinosaurs from his 5.5-year-old son.