Oracle Database Administrator

AVATAR TECHNO SERVICES PTE. LTD.; Singapore; On-site; SGD 80,000 - 110,000; Full time

Job summary

A technology services company in Singapore is seeking an experienced Oracle Database Administrator to manage and administer Oracle databases, perform performance tuning, and collaborate with cross-functional teams. The ideal candidate should have over 6 years of DBA experience, expertise in Oracle tools, and knowledge of cloud platforms. This role offers opportunities for growth and learning in a dynamic environment.

Qualifications

• 6 years of hands-on Oracle DBA experience, with 3 years in a senior/L3 role.
• Expertise in Oracle internals and performance diagnostics.
• Experience with cloud platforms for Oracle databases.

Responsibilities

• Manage and administer Oracle databases in production and development.
• Perform advanced database performance tuning and query optimization.
• Automate routine database tasks using scripting and tools.

Skills

Oracle Database Management

Performance Tuning

Disaster Recovery

Automation (PL/SQL, Shell)

Database Security

Cloud Platforms Expertise (OCI, AWS, Azure)

Communication Skills

Scripting (Python, Shell)

Education

Bachelor's degree in Computer Science or related field

Tools

Oracle

Data Guard

RMAN

GoldenGate

Job description

Job Description & Requirements

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.

· Willing to learn SAP HANA