sentences:  He then held the position of R&D Engineer at Kudelski SA and in Silicon Valley, before becoming Pay TV Product Manager and then Director of Nagravision, Kudelski SA's pay TV division.In 1991, André Kudelski succeeded his father Stefan Kudelski to the post of President and Chief Executive Officer of Kudelski SA.He has been a member of Kudelski SA's Board of Directors since 1987.