Hermann was previously head of private banking at Valartis Bank and at Maerki Baumann & Co, where he was responsible for the development and expansion of its front office, as well as for advisory and portfolio management services. He began his career as a private banker with Credit Suisse in Zurich.

was founded in Geneva in 1819 and now has 625 employees with offices in Geneva, Basel and Zurich, as well as London, Paris, Madrid, Barcelona, Valencia and Luxembourg, along with Montreal, Hong Kong and Dubai.