Senior Oracle Database Administrator

We are seeking an experienced Senior Oracle Database Administrator to join our Hosting Operations team. In this role, you will be responsible for managing, monitoring, tuning, and maintaining Oracle database environments across Exadata infrastructure and Linux-based Standard Edition (SE) platforms. You will serve as a subject matter expert for database performance, patching, backup/recovery, and automation scripting, playing a critical role in ensuring the reliability and performance of hosted customer environments across a diverse enterprise client base.

Job Description:

KEY RESPONSIBILITIES

Database Administration & Platform Management

• Administer and manage Oracle databases on Exadata infrastructure (ExaCC / on-premise) and Linux-hosted Standard Edition environments.
• Monitor database health, availability, and capacity across multiple hosted customer environments.
• Manage Oracle RAC (Real Application Clusters) and Data Guard configurations on Exadata.
• Coordinate planned maintenance, failover testing, and disaster recovery activities.
• Manage ASM (Automatic Storage Management) disk groups and storage configurations on Exadata.

Performance Tuning & Optimization

• Conduct proactive and reactive performance analysis using AWR, ADDM, ASH, and Statspack reports.
• Identify and resolve database bottlenecks related to SQL execution plans, memory allocation (SGA/PGA), I/O, and locking contention.
• Tune SQL statements, indexes, and schema objects to improve application response times.
• Provide written performance improvement recommendations and root cause analysis to stakeholders and customers.
• Monitor and tune Exadata-specific features:
  Smart Scan offloading, Flash Cache, Hybrid Columnar Compression (HCC), and IORM.

Oracle Patching & Lifecycle Management

• Plan and execute Oracle quarterly PSU/RU patching for Standard Edition databases on Linux.
• Manage full-stack patching on Exadata platform, including DB home patches, GI patches, Exadata Bundle Patches (ExaBP), and cell patches.
• Coordinate patching activities through the Change Advisory Board (CAB) process, ensuring minimal customer downtime.
• Test patches in lower environments prior to production rollout and maintain detailed patching runbooks.
• Track Oracle patch schedules, Critical Patch Updates (CPUs), and security advisories.

Scripting & Automation

• Develop and maintain Shell (Bash), Python, and PL/SQL scripts to automate routine DBA tasks including health checks, space monitoring, alert log parsing, and report generation.
• Build and enhance automation for patching workflows, backup verification, and performance data collection.
• Integrate DBA automation scripts with CI/CD pipelines (Azure Dev Ops, Git Hub Actions) where applicable.
• Contribute to Infrastructure as Code (IaC) initiatives related to database provisioning and configuration management.

Backup, Recovery & Business Continuity

• Design, implement, and maintain Oracle RMAN backup strategies for Exadata and SE environments, including full, incremental, and archived log backup policies.
• Perform and validate periodic recovery tests to confirm backup integrity and meet RTO/RPO objectives.
• Manage Data Pump (expdp/impdp) exports for logical backups, environment refreshes, and data migration.
• Maintain backup and recovery runbooks, escalation procedures, and incident documentation.
• Respond to and lead database recovery efforts during incidents, ensuring minimal data loss and rapid restoration.
• Partner with application teams, infrastructure engineers, and customer success managers to resolve database-related issues.
• Contribute to internal knowledge base and Confluence documentation for SOPs, runbooks, and architecture references.
• Participate in on-call rotation to support production databases during off-hours incidents.
• Mentor junior DBA team members and provide technical guidance on best practices.

REQUIRED QUALIFICATIONS

• 7+ years of Oracle DBA experience in an enterprise hosting or managed services environment.
• Hands-on experience administering Oracle Exadata (ExaCC, X8 or later, quarter/half/full rack configurations).
• Strong proficiency in Oracle performance tuning using AWR, ADDM, ASH, SQL Tuning Advisor, and execution plan analysis.
• Experience with Oracle RMAN backup strategies, including cross-platform recovery and Exadata-specific configurations.
• Demonstrated experience with Oracle patching on both SE and Exadata platforms (PSU, RU, ExaBP, GI patches).
• Proficiency in scripting languages:
  Bash/Shell scripting and PL/SQL;
  Python is an asset.
• Experience with Oracle RAC, ASM, and Data Guard in high-availability configurations.
• Solid understanding of Linux OS administration (RHEL/OEL) as it relates to Oracle database hosting.
• Excellent written and verbal communication skills; ability to produce clear technical documentation and customer-facing performance reports.

PREFERRED QUALIFICATIONS

• Oracle Certified Professional (OCP) 19c or later.
• Experience with Oracle 19c (including quarterly patch releases) and familiarity with Oracle 21c/23ai features.
• Exposure to…