Senior Oracle DBA (Multi-Database Expertise)

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Job Title: Senior Oracle DBA (Multi-Database Expertise)

Location: Minneapolis MN (Onsite)
Experience Required: 10 Years
Employment Type:Contract

Position Overview

We are seeking a highly experienced Senior Oracle DBA with deep expertise in Oracle database administration and strong working knowledge of DB2 and MongoDB. This role is responsible for managing mission-critical high-availability database environments across on-premises and cloud platforms.

The ideal candidate will bring strong hands-on experience in HA/DR performance tuning backup & recovery security hardening and enterprise database monitoring.

Key Responsibilities

Oracle Database Administration (Primary Focus)

• Administer and support Oracle 11g/12c (legacy) and 19c/21c (primary production) environments.

• Manage high availability solutions including RAC Data Guard (Physical & Logical) Active Data Guard and GoldenGate.

• Perform advanced backup and recovery operations using RMAN Flashback technologies and PITR.

• Lead performance tuning initiatives using AWR ADDM ASH SQL Tuning Advisor and execution plan analysis.

• Manage Multitenant architecture (CDB/PDB) ASM Grid Infrastructure and Oracle Net Services.

• Implement database security controls including TDE Database Vault Audit Vault and encryption standards.

• Support partitioning strategies (Range List Hash Composite).

• Perform patching upgrades migrations and capacity planning.

Secondary Database Support

• Provide intermediate support for IBM DB2 (LUW 10.5/11.x) including HADR backup/recovery RUNSTATS REORG and performance monitoring.

• Support MongoDB environments including replica sets indexing strategies backup methods and basic sharding concepts.

• Basic administrative exposure to Sybase ASE environments.

Infrastructure & Platform Support

• Support database platforms across Linux (RHEL/Oracle Linux) Unix and Windows Server environments.

• Work with enterprise monitoring tools such as OEM Cloud Control Prometheus Grafana Splunk ELK and AppDynamics.

• Coordinate with infrastructure and application teams for production deployments and incident resolution.

Security & Compliance

• Ensure database environments meet enterprise security and compliance standards.

• Lead vulnerability remediation and database hardening efforts.

• Support disaster recovery and business continuity initiatives.

Required Qualifications

• 10 years of hands-on experience as an Oracle DBA in enterprise environments.

• Strong expertise in RAC Data Guard RMAN ASM PL/SQL and performance tuning.

• Experience supporting multi-terabyte high-volume transactional databases.

• Hands-on experience with Oracle Enterprise Manager (OEM).

• Working knowledge of DB2 (HADR backup/recovery).

• Exposure to MongoDB administration and monitoring.

• Strong troubleshooting analytical and communication skills.

• Ability to operate independently in complex production environments.

Preferred Qualifications

• Experience with Oracle Exadata.

• Exposure to Oracle Cloud Infrastructure (OCI) or Autonomous Database.

• Experience with enterprise backup tools such as Veeam Commvault or NetBackup.

• Knowledge of containerized environments or hybrid cloud architectures.

Technical Skills

Oracle RAC Data Guard RMAN PL/SQL ASM GoldenGate OEM DB2 HADR MongoDB Linux Performance Tuning HA/DR Security Hardening