Oracle Database Administrator

AVATAR MODERN TECHNO SERVICES PTE. LTD.; Singapore; On-site; SGD 80,000 - 100,000; Full time

Job summary

AVATAR MODERN TECHNO SERVICES PTE. LTD. in Singapore is looking for an experienced Oracle DBA to manage and administer Oracle databases, with key responsibilities including performance tuning, disaster recovery planning, and automation of tasks. The ideal candidate should have a Bachelor's degree in Computer Science, over 6 years of DBA experience, strong expertise in Oracle technologies, and cloud platform familiarity. Excellent communication skills are required in this role which involves collaboration with DevOps teams.

Qualifications

• 6 years of hands-on Oracle DBA experience with at least 3 years in a senior/L3 role.
• Expertise in Oracle internals and performance diagnostics.
• Willing to learn SAP HANA.

Responsibilities

• Manage and administer Oracle databases in production and development environments.
• Perform advanced database performance tuning and query optimization.
• Design and implement disaster recovery and backup strategies.
• Automate database tasks using PL/SQL and Shell scripting.
• Monitor database health and resolve potential issues.

Skills

Oracle database management

Database performance tuning

PL/SQL scripting

Shell scripting

Disaster recovery strategies

Automation

Cloud platforms experience

Excellent communication skills

Troubleshooting tools

Education

Bachelor's degree in Computer Science or related field

Tools

Oracle

RMAN

Data Guard

GoldenGate

Cloud platforms (OCI, AWS, Azure)

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