Senior Oracle DBA – RAC, Exadata & Cloud

APTITUDE MANAGEMENT CONSULTING PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

AMC is seeking an experienced Oracle Database Administrator in Singapore to install, configure, and manage Oracle databases across 11g/12c/18c/19c, Exadata, and cloud environments. The role covers RAC, Data Guard, RMAN, OEM, and performance tuning, with responsibilities spanning migration, security, and disaster recovery.

The ideal candidate will have extensive hands-on experience with Exadata, OCI, and GoldenGate, and be proficient in Linux/Unix shell scripting to support automation and daily

Qualifications

• Minimum 6 years of hands-on Oracle Database Administration experience.
• Strong expertise in Oracle Database 11g, 12c, 18c, 19c, and later versions.
• Extensive experience with Oracle RAC, ASM, RMAN, Data Guard, Data Pump, and OEM.
• Hands-on experience with Oracle Exadata Database Machine administration.
• Experience with OCI, Exadata Cloud Service (ExaCS), and (ExaCC).
• Proven experience in database migration, upgrades, consolidation, and modernization.
• Strong knowledge of backup/recovery, HA, DR, and failover strategies.
• Experience with Oracle GoldenGate administration and replication troubleshooting.
• Advanced database performance tuning using Oracle diagnostic and tuning tools.
• Strong SQL tuning, indexing, partitioning, memory management, and troubleshooting skills.
• Experience supporting mission-critical production environments.
• Good knowledge of Linux/Unix administration and shell scripting.
• PostgreSQL DBA experience preferred.
• AWS Oracle RDS administration experience is an advantage.
• Knowledge of database security, hardening, compliance, and vulnerability remediation.
• Strong RCA, problem-solving, and technical documentation skills.
• Good understanding of ITIL processes, incident management, and change management.
• Strong communication skills with technical teams, vendors, and stakeholders.
• Oracle certifications (OCP, OCI, GoldenGate, Exadata) are preferred.

Responsibilities

• Install, configure, administer, patch, upgrade, migrate, clone, and decommission Oracle databases.
• Manage Oracle RAC, ASM, RMAN, Data Guard, Data Pump, and OEM.
• Ensure database availability, performance, security, and operational stability for critical systems.
• Implement and support Oracle Data Guard (Physical/Logical Standby, Active Data Guard) and DR failover activities.
• Perform backup, recovery, and DR testing using RMAN, Data Pump, and enterprise backup solutions.
• Administer Exadata Database Machine, including deployment, patching, upgrades, monitoring, and troubleshooting.
• Support OCI, Exadata Cloud Service (ExaCS), and ExaCC environments.
• Support database migration, modernization, consolidation, and hybrid cloud initiatives.
• Perform performance tuning using AWR, ASH, ADDM, SQL Trace, TKPROF, Explain Plan, and SQL Tuning Advisor.
• Optimize SQL, indexing, partitioning, memory management, and database configuration.
• Implement database security controls including access management, privilege management, auditing, and hardening.
• Support Oracle GoldenGate replication, monitoring, upgrades, and troubleshooting.
• Administer PostgreSQL databases including backup, recovery, replication, upgrades, and tuning.
• Support AWS Oracle RDS operations including patching, snapshots, restores, and monitoring.
• Develop Unix/Linux shell scripts for database automation and operational tasks.
• Perform RCA for production incidents and implement corrective and preventive actions.
• Participate in incident, change, problem management, and 24×7 production support.

Skills

Oracle DBA

Shell scripting

SQL performance tuning

Problem solving

Tools

Oracle 11g/12c/18c/19c

Oracle RAC

RMAN

Data Guard

OEM

Exadata

OCI

ExaCS

ExaCC

GoldenGate

PostgreSQL

AWS RDS

Linux/Unix

Shell scripting

Job description

AMC is seeking an experienced Oracle Database Administrator in Singapore to install, configure, and manage Oracle databases across 11g/12c/18c/19c, Exadata, and cloud environments. The role covers RAC, Data Guard, RMAN, OEM, and performance tuning, with responsibilities spanning migration, security, and disaster recovery.

The ideal candidate will have extensive hands-on experience with Exadata, OCI, and GoldenGate, and be proficient in Linux/Unix shell scripting to support automation and daily