Marcelo Oliveira is Director, Product Management, Marketing and Business Development, for the Collaboration Technology Group of Cisco Systems, Inc. Prior to joining Cisco in 2006, he held key software architect and engineering positions with Siemens Communication Networks. He holds a B.S. in Electronic Engineering from the Universidade Tecnica Federal do Parana in Brazil and an MBA from the Haas School of Business at U.C. Berkeley.