Ramachandran Kittu

• Fixed-scope migration engagement: Migrated 20+ Oracle 19c databases, up to 25 TB, from AWS RDS Custom RAC to Oracle Exadata X11M 2 node RAC under Oracle Database@AWS, using a DR standby cutover. • Configured DR standby databases and implemented TDE, SSL/TLS data encryption. • Automated DR lag monitoring, DR testing using Ansible, Bash, and SQL, leveraging AI-assisted development for threshold-based lag alerts and DR drills aligned to RPO/RTO and reducing DR drill time from around 2 hours to 15 minutes..

• Fixed-scope migration engagement: Migrated 40+ Oracle 19c databases, up to 60 TB in size, from Exadata X5 to ExaCC X10M two-node RAC configuration, selecting migration methods such as Data Guard and Data Pump per database based on size and permitted downtime. • Implemented data encryption using TDE for data at rest and SSL/TLS for data in transit. • Configured Data Guard standby for a resilient disaster recovery (DR) architecture. • Authored SOPs covering migration, DR database build, and data encryption.

• Fixed-scope migration engagement: Migrated 30+ Oracle 19c databases, up to 80 TB in size, from Exadata X7 to ExaCC X10M two-node RAC configuration, selecting migration methods such as Data Guard and Data Pump per database based on size and permitted downtime. • Implemented data encryption using TDE for data at rest and SSL/TLS for data in transit. • Configured Data Guard standby for a resilient disaster recovery (DR) architecture. • Authored SOPs covering migration, DR database build, and data encryption.

• Fixed-scope migration engagement: Migrated 40+ Oracle 19c databases, up to 30 TB in size, from Exadata X7 to ExaCC X9M four-node RAC configuration, selecting migration methods such as Data Guard, GoldenGate, and Data Pump per database based on size and permitted downtime. • Migrated 20+ Oracle GoldenGate 19c replication paths from Classic to Microservices architecture. • Configured DR standby databases and implemented data encryption using TDE for data at rest and SSL/TLS for data in transit.

• Upgraded Oracle 12c databases to 19c and applied quarterly patches across GRID, Database, and Datapatch layers. • Monitored and troubleshot Golden Gate replication and Data Guard standby on Oracle 19c databases; handled backup and recovery with RMAN/Data Pump. • Optimized SQL and database performance to improve query response times and system efficiency. • Supported 24/7 production operations across shift and weekend on-call rotations.

• Led a team of 10+ DBAs; upgraded Oracle 12c databases to 19c and implemented quarterly patching. • Optimized SQL and database performance to improve query response times and system efficiency. • Handled backup and recovery requests using RMAN and Oracle Data Pump.

• Upgraded Oracle databases from 11g to 12c and applied quarterly patches. • Optimized SQL and database performance to improve query response times and system efficiency. • Handled backup and recovery requests using RMAN and Oracle Data Pump.

• Led a team of 15+ DBAs delivering an Oracle 12c upgradation and migration project, serving as primary client and stakeholder contact. • Upgraded Oracle 11g databases to 12c and migrated 12c databases from Non-CDB to Multitenant (CDB/PDB) architecture. • Coordinated with application teams to align migration schedules and minimize business disruption.

• Upgraded Oracle databases from 10g to 11g, supporting production database operations. • Optimized storage utilization and reduced database segment fragmentation through data reorganization using Oracle Data Pump and Segment Shrink operations. • Supported application schema administration, including user/schema account creation, privilege management, administration of application objects, and handled data refresh requests using expdp/impdp.

• Upgraded Oracle databases from 9i to 10g, supporting production database operations. • Migrated Oracle databases across data centres. • Optimized storage utilization, reduced database segment fragmentation through data reorganization using Oracle Data Pump, Segment Shrink operations. • Supported application schema administration, including user/schema account creation, privilege management, administration of application objects, and handled data refresh requests using exp/imp.