Yousef Khalidi is a Distinguished Engineer in the Windows Azure team at Microsoft. Yousef has architectural responsibilities across the Azure platform, centered on the goal of building a low-cost, highly-available, automated, large-scale computing system, using commodity hardware, with efficiently managed shared resources. Previously, he led an advanced development team in Windows that tackled a number of related operating system areas, including application management and isolation. Before joining Microsoft, Yousef was a Distinguished Engineer at Sun Microsystems. At Sun, he held positions including CTO and Chief Architect of Solaris, Chief Architect of the Sun Cluster product line, and Chief Architect of Sun's N1 utility computing initiative. Yousef holds 37 patents and has a Ph.D. and an M.S. in Information and Computer Science from Georgia Tech.