Gilles founded Octogone Gestion SA in 1995 with Joakim Lehmkuhl and Urs Hodler. From 1981 to 1995, he worked at Bearbull as Portfolio Manager, then became member of the Investment Product Committee before joining the company’s board.
Prior to that, he spent several years in the USA with U.M.C. Industries as Assistant Vice President in the Mergers and Acquisitions Department, after a year with Paribas and two years with the French Foreign Service in the Middle East.
Gilles is an Economics graduate from the University of Geneva.