Red Hat, Inc. (NYSE: RHT), the world’s leading provider of open source solutions, today announced the expansion of its North American sales leadership with three key appointments. Red Hat named D. Robert Martin as vice president of North American Partner Sales, John Tzioufas as vice president of North American Emerging Product Sales, and Matt Androski as vice president of West Region Sales. These additions are aimed at supporting Red Hat’s momentum as enterprises journey to the open hybrid cloud. Martin, an executive with more than twenty years’ experience in sales and sales leadership, joins Red Hat to lead the development and execution of Red Hat's North America channel strategy and partner sales execution. He will be responsible for driving sales and developing relationships with North American channel partners, including resellers and distributors, as well as alliance partners like independent software vendors (ISV), system integrators (SI), value-added resellers (VAR), original equipment manufacturers (OEM), and embedded, cloud, and hosted infrastructure providers. Most recently, Martin served as vice president of Global Indirect Channels at VCE, Inc. where he was responsible for creating and executing the worldwide channel sales strategy for the Vblock converged infrastructure platform that supported the implementation of cloud computing across multiple market segments. Prior to VCE, Martin held several leadership roles at Cisco including senior director of Worldwide VTG Channel Sales; director of Business Strategy and Operations for the U.S. and Canada Channels; and senior operations director for U.S. Channels. Martin has been named one of CRN's Top 100 Channel Executives. Tzioufas also joins Red Hat with more than twenty years of sales experience. At Red Hat, he will be responsible for promoting the success of a multi-product customer diffusion strategy and help spur growth and adoption of all of Red Hat's emerging products, including cloud, storage and virtualization. Before joining Red Hat, he served as the vice president of Sales for Hewlett Packard, where he was the field leader for the eastern half of the U.S. Tzioufas has held leadership roles at FAST Search and Transfer, Sonicsoftware, TIBCO Software, and RightWorks Corporation.