Provided DBA Services to several companies to improve their performance. Setup Disaster Recovery solutions (Dataguard), Tuning, Migration Services, Backup and Recovery (with RMAN and Shell Scripts) over highly volume Terabyte Databases. Setup Oracle RAC(installation, upgradations, Patching).Perform CORE DBA tasks such as Database Administration on Oracle 9i, 10g and 11g environments, performance tuning, Schema creation, maintenance, and troubleshooting. Administers, maintains, develops and implements policies and procedures for ensuring the security and integrity of the company database. Implements data models and database designs, data access and table maintenance codes; resolves database performance issues, database capacity issues, backups, replication, and other distributed data issues over a highly volume Terabyte Database. Setup and manage RAC environments for our customers.