Amir Goldstein heads the virtualization group at Cellrox (http://www.cellrox.com), a start-up company providing virtualization for multi-persona solutions on smartphones and tablets. Prior to Cellrox, Amir lead technology groups at various start-up companies in the fields of security, storage, networking, and cloud computing. Amir is the creator and maintainer of out-of-tree Next3 project, which brings snapshot support for the ubiquitous Ext3 with fully compatible on-disk format. Amir collaborated the efforts to mainline snapshots support to Ext4. Amir holds an M.Sc. in Electric Engineering from Tel-Aviv University and a B.Sc. in Physics, Mathematics and Computer Science from Hebrew University.