Committer for Apache CloudStack and active contributor to the Citrix CloudPlatform product.- Refactored CloudStack API by separating data persistence and data view presentation to greatly improve list performance on large-scale cloud data.- Designed and developed a flexible backup storage object storage plug-in framework to enable CloudStack to systematically manage and configure various types of backup data storage from different vendors, such as AWS S3, Basho Riak-CS, Cloudian, SolidFire, Ceph , NetApp, etc.- Data analysis and data mining for exchange and access management (IAM) systems- Upgrade CloudStack to use VMware vSphere Web Services SDK 5.1 to support all versions of VMware vSphere servers