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L3 Oracle DBA

1 month ago

Singapore APAR TECHNOLOGIES PTE. LTD. Full time
Roles & Responsibilities

Job Description

Key Responsibilities:


• Manage and administer Oracle databases (versions 12c, 19c, and newer) in production and development environments.


• Perform advanced database performance tuning, query optimization, and index management.


• Design and implement high availability (HA), disaster recovery (DR), and backup strategies (RMAN, Data Guard).


• Automate routine database tasks using PL/SQL, Shell scripting, or Ansible.


• Apply patches, perform upgrades/migrations (on-prem and cloud), and manage version control.


• Implement and enforce database security, roles, and user access controls.


• Monitor database health and proactively identify and resolve potential issues.


• Provide L3 support for escalated incidents and lead root cause analysis.


• Collaborate with development, infrastructure, and DevOps teams to support application and system integration.


• Participate in on-call rotation and support weekend deployments when necessary.


• Document architecture, configurations, and procedures for audit and knowledge transfer.

Requirements


• Bachelor's degree in Computer Science, Information Technology, or related field.


• 6 years of hands-on Oracle DBA experience with at least 3 years in a senior/L3 role.


• Expertise in Oracle, ASM, RMAN, Data Guard, and GoldenGate.


• Strong knowledge of Oracle internals, performance diagnostics (AWR, ASH, TKPROF), and troubleshooting tools.


• Experience with cloud platforms (OCI, AWS RDS for Oracle, or Azure Database for Oracle).


• Familiarity with ITIL processes and incident/change/problem management.


• Scripting experience (Shell, Python, or similar) for automation and monitoring.


• Excellent communication skills and the ability to work in a high-pressure environment.

EA Number: 11C4879

Tell employers what skills you have

RMAN
Excellent Communication Skills
Version Control
RDS
Troubleshooting
Oracle
Azure
High Availability
Root Cause Analysis
Scripting
Performance Tuning
ITIL
Disaster Recovery
Databases
Data Guard