Database admin

Proven hands-on experience administering and managing enterprise database platforms, including Oracle, Sybase ASE, Microsoft SQL Server, PostgreSQL, DataStax Cassandra, and Couchbase, covering installation, configuration, patching, upgrades, and ongoing maintenance.
Strong understanding of database architectures and core concepts across RDBMS and NoSQL systems, including tablespaces, datafiles, filegroups, schemas, ASM, Cassandra keyspaces, Couchbase buckets, indexing strategies, query optimization, and transaction/log management.
Extensive experience in database performance tuning and monitoring, utilizing tools such as:
Oracle (AWR, ADDM, ASH)
SQL Server (Query Store, Profiler)
PostgreSQL (EXPLAIN ANALYZE)
Cassandra and Couchbase monitoring utilities
Execution plan analysis and SQL/query optimization across platforms
Strong expertise in backup and recovery solutions, including:
Oracle RMAN (full...