Prasenjit Sarkar (@stretchcloud) is a senior member of technical staff at VMware Service Provider Cloud R&D, where he provides architectural oversight and technical guidance for designing, implementing, and testing VMware's Cloud datacenters. He is an author, R&D guy, and a blogger focusing on virtualization, Cloud computing, storage, networking, and other enterprise technologies. He has more than 10 years of expert knowledge in R&D, professional services, alliances, solution engineering, consulting, and technical sales with expertise in architecting and deploying virtualization solutions and rolling out new technologies and solution initiatives. His primary focus is on VMware vSphere Infrastructure and Public Cloud using VMware vCloud Suite. His aim is to own the entire life cycle of a VMware based IaaS (SDDC), especially vSphere, vCloud Director, vShield Manager, and vCenter Operations. He was one of the VMware vExperts of 2012 and is well known for his acclaimed virtualization blog http://stretch-cloud.info. He holds certifications from VMware, Cisco, Citrix, Red Hat, Microsoft, IBM, HP, and Exin. Prior to joining VMware, he served other fine organizations (such as Capgemini, HP, and GE) as a solution architect and infrastructure architect.