With a total experience of 7.5 years, I have spent the past 2.5 years working as a Platform Engineer, and I previously worked for 5 years as a Database Administrator. I possess a solid background in database management, specializing in managing databases across multiple servers and multi-instance environments. My expertise includes backups/restores, troubleshooting, proactive maintenance, and knowledge of database architecture. I have hands-on experience with ORACLE RAC, ORACLE Data Guard, ORACLE Multitenant environment, RMAN, ASM, Oracle patching, upgrades/migrations, performance tuning, SQL server, and AWS database management (RDS).Key Contributions:●Designing, building, and maintaining software development platforms.●Leading system administration tasks●Collaborating across departments.●Proactively monitoring and improving platforms.●Advocating for modern tools and automation.●Ensuring scalability and performance.Technical Experience:●Configured and worked on multi-instance models and high availability setups.●Configured SSL keys and certificates.●Migrated applications to the cloud (AWS/Azure).●Managed connectivity between applications and databases.●Cloned environments.●Applied releases, minor, and core version upgrades.●Administered Oracle standalone and RAC clustered (11g, 12c, 18c, and 19c) database environments.●Engaged in performance tuning and query optimization.●Supported 8-node RAC environments.●Managed ASM disk groups via asmcmd and database control.●Monitored Physical Standby Databases.●Conducted database migrations.●Managed Multitenant environment databases.●Performed RMAN Backup/restore tasks.●Applied patches, including PSU, one-off, and data patches.●Refreshed databases from production to development using OS-level scripts.●Developed and configured cron jobs to monitor database performance.●Exported and imported at full, schema, tablespace, and object levels.●Monitored mount point and tablespace space utilization.●Worked on Backup/Restore, and Encryption/Decryption on SQL Server databases.●Upgraded AWS RDS Oracle databases.