As a senior database administrator have an extensive working experience in designing and configuring several RDBMS databases mainly focusing on Oracle and MSSQL databases. Worked with databases like Oracle, SQL Server, MySQL and PostgreSQL on AWS Cloud services and traditional hosting services like VM Ware.• Install and maintain Oracle 19c,12cr1,12cr2 and MS SQL server 2016,2017,2019 database software.• Upgrade Oracle databases from 12c release1 to 12c Release2 and 12cr2 to 19.• Upgrade and Migrate MSSQL databases from MSSQL 2016&2014 to MSSQL 2017 and MSSQL 2019.• Create and Maintain Oracle, MySQL, MS SQL, PostgreSQL databases on AWS EC2 Instances.• Design and configured Oracle, MySQL, PostgreSQL databases on AWS RDS.• Extensive working experience with configuring database backups to tapes and AWS S3 data storage.• Migrate Oracle and MSSQL RDBMS databases from On-prem database servers to AWS EC2 instances.• Upgraded MySQL databases from 5.7 to MySQL 8 on both EC2 and RDS.• Design and configures databases schemas and proficient with user management.• Installed and configured different components of MSSQL databases.• Configured and automated backup jobs for MSSQL 2016, 2017, 2019 from AWS EC2 instances to AWS S3 buckets.• Worked on backup strategies and configured backups to achieve minimal data loss database restores.• Automated data refreshes from Production to lower environments.• Automated database backups using shell scripts and configured database backups to write to S3 buckets.• Worked on design and configuring MySQL and PostgreSQL databases on AWS RDS and designed schemas.• Point in time recovery using AWS snapshots for RDS.• Thorough with various billing strategies in cloud and saved money for the organization by identifying the excess costs in hosting the databases on cloud platforms.• Hosted databases on self-managed technologies like AWS Aurora.