Sr Oracle Database Administrator

1 week ago

Singapore ELLIOTT MOSS CONSULTING PTE. LTD. Full time

**Key Responsibilities**:
**Advanced Support & Escalation Handling**:

- Act as the escalation point for L1 database issues.
- Troubleshoot and resolve complex issues related to performance, availability, storage, and security.
- Investigate and fix blocking sessions, memory leaks, corruption, fragmentation, and audit failures.

**Database Administration & Operations**:

- Perform installations, configurations, patching, and upgrades of Oracle databases.
- Manage and test backup and recovery strategies using RMAN.
- Execute and validate restores in test and production environments.

**Change & Release Management**:

- Review and execute complex change requests and deployment scripts.
- Manage modifications to DB jobs on both the database and associated servers.
- Plan and implement database migrations with mínimal downtime.

**Performance Tuning & Monitoring**:

- Conduct health checks and performance tuning using AWR/ASH, SQL plan analysis, and index optimization.
- Optimize memory configurations and tune queries.
- Configure and enhance monitoring tools such as Oracle Enterprise Manager and EMS.

**Security & Access Management**:

- Enforce user account policies and manage database access controls.
- Configure Oracle wallet and encryption for data protection.
- Coordinate domain/local account management with identity teams.

**Project & Documentation Support**:

- Contribute to process automation and continuous improvement initiatives.
- Maintain detailed documentation including root cause analyses and standard procedures.

**Required Skills & Qualifications**:

- 3-5 years of hands-on experience in Oracle Database Administration (preferably with Oracle 19c+)
- Strong understanding of Oracle architecture, ASM, RMAN, and Oracle Data Guard
- Skilled in SQL tuning, PL/SQL, and Unix/Linux shell scripting
- Experience with Oracle Enterprise Manager and other DB monitoring tools
- Familiarity with ITSM tools (e.g., ServiceNow) and change management processes
- Ability to work independently and troubleshoot critical issues with mínimal supervision
- Willingness to participate in on-call support rotations

**Preferred Skills**:

- Oracle Certified Professional (OCP) - Oracle Database Administration
- Experience with other RDBMS platforms such as SQL Server, PostgreSQL, or MySQL in production environments
- Exposure to cloud database services (e.g., AWS RDS, Azure SQL)
- ITIL Foundation Certification

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