9.5 years of rich experience as Senior DBA and System Administrator on Oracle and SQL Server Administration, NoSQL Cassandra Administration, Linux/Solaris/Windows Administration, Database and System Design and Architect, Oracle Multitenant Deployment (Oracle12c), Database and OS High Availability, Disaster Recovery, Performance Tuning, Data Security, Backup/Recovery, Exadata, SQL Server Failover Cluster for High Availability, AlwaysOn, SQL Server Mirroring, SQL Server Backup & Recovery, Data Migration, Database Load Testing, Cassandra Cluster Deployment, Administration and support.