Linux System Administration, Performance Tuning, Database Migration, shell scripting, PostgreSQL, replication architectures, partitioning strategies, Troubleshooting, observability and monitoring frameworks, connection poolers, backup and recovery tools, cloud-based PostgreSQL services, configuration tuning

Query Optimization, Migrations, Clustering, SQL Server, UNIX, Performance Tuning, Replication, Linux, shell scripting, Oracle, PostgreSQL, high availability technologies, Database upgrades, indexing strategies, monitoring and management tools, Patching

snowflake , MS SQL, Oracle, Azure Sql, MongoDB, Redshift, Database Administration

Oracle, Asm, Rman, Goldengate, Rac, Datapump, Oracle Database Administration