Stefan Kast began his professional career with an apprenticeship as a computer specialist in the mid-80s. After completing his training, he became self-employed and worked initially as a programmer and later as a consultant for the finance department of Siemens AG and the computer centre of the savings banks. In 1998, he took up a permanent position at the computer centre of the savings banks (IZB Soft) and was responsible for the Depot-A area both technically and IT-wise. At the beginning of 2015, he switched to the service provider side by consolidating the current Finanz Informatik. Both sides benefited from his long-standing contacts with the board members of financial.com AG and the savings bank landscape. Since then Stefan Kast has been responsible for the entire S-Finance Group at financial.com AG as Sales Director.