> Markdown version of [/jobs/ext/4639568-oracle-dba](https://www.wearedevelopers.com/jobs/ext/4639568-oracle-dba). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Oracle DBA - **Company:** Polar IT Services Inc - **Location:** Elkridge, MD, United States - **Contract:** Permanent contract - **Skills:** Unix, Databases, Data Recovery, Database Security, Database Storage Structures, Oracle Data Guard, Linux, Microprocessors, Disaster Recovery, Oracle Databases, Oracle (Applications), Oracle Rac, Performance Tuning, Standard Sql, Recovery Manager (RMAN), Service Pack, Shell Script, SQL Databases, Management of Software Versions, Backup and Restore, System Availability, Database Optimization, Database Performance, Database Migration, Performance Monitor, Sql Tuning - **Published:** November 8, 2026 - **Apply:** https://www.careerbuilder.com/job-details/oracle-dba-elkridge-md--5292eae8-4515-45e2-9786-8fd5bde7d829 ## About the Role Oracle DBA (Database Administrator), Database Administration, Oracle Database, Unix Operating Systems, Linux Operating System, Oracle 11i, Cloning, Housekeeping/Cleaning, Data Recovery, RMAN ## Description Database Administration * Install, configure, and maintain Oracle databases (11g / 12c / 19c) on Linux/Unix platforms * Perform database creation, configuration, cloning, and decommissioning * Manage tablespaces, datafiles, redo logs, control files, and storage growth * Perform routine maintenance activities such as space management and housekeeping Backup & Recovery * Design and implement backup and recovery strategies using RMAN * Perform database restores and recoveries (complete and point-in-time recovery) * Test backup and recovery procedures regularly to ensure DR readiness * Handle archive log management and retention policies Performance Monitoring & Tuning * Monitor database performance using AWR, ADDM, ASH, OEM * Identify and resolve performance issues related to CPU, memory, I/O, SQL * Tune SQL queries, indexing strategies, and optimizer statistics * Manage Oracle initialization parameters for optimal performance High Availability & Disaster Recovery * Implement and support Oracle Data Guard (Physical / Logical Standby) * Manage Oracle RAC environments for high availability * Perform planned and unplanned failover and switchover operations * Support DR drills and business continuity testing Security & Compliance * Manage database users, roles, profiles, and privileges * Ensure database security standards and compliance requirements are met * Implement auditing, password policies, and access controls * Apply security patches and CPU updates Upgrades, Patch & Migration * Perform Oracle patching, PSU/CPU upgrades, and version upgrades * Support database migrations across platforms or versions * Coordinate with application and infrastructure teams during releases * Follow change management and release processes Production Support * Provide 24x7 on-call support for production databases * Troubleshoot database incidents and perform root cause analysis * Work with vendors and internal teams to resolve complex issues * Maintain SOPs, runbooks, and operational documentation Roles & Responsibilities * Install, configure, and administer Oracle databases (11g, 12c, 19c) in development, test, UAT, and production environments * Perform day-to-day database administration including creation, configuration, cloning, and deletion * Monitor database health and availability; proactively identify and resolve issues * Execute backup and recovery operations using RMAN, including restore and point-in-time recovery * Manage database storage: tablespaces, datafiles, redo logs, archive logs, and control files * Ensure optimal database performance through SQL tuning, index management, statistics gathering, and parameter tuning * Monitor and tune database resources using AWR, ADDM, ASH, OEM, and performance views * Implement and support High Availability and Disaster Recovery solutions using Oracle RAC and Data Guard * Perform Data Guard switchover and failover operations during planned and unplanned events * Apply Oracle patches, CPUs, PSUs, and perform version and platform upgrades * Support database migrations across environments and Oracle versions * Manage database security, including users, roles, privileges, profiles, and auditing * Ensure compliance with security standards, operational policies, and regulatory requirements * Troubleshoot production incidents, perform root cause analysis, and implement preventive measures * Coordinate with application, system, and network teams during deployments and outages * Automate routine DBA tasks using shell scripting where applicable * Maintain DBA documentation, SOPs, and operational runbooks * Participate in 24x7 support and on-call rotations for critical production systems.