Oracle Database Administrator

Russell Tobin; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Russell Tobin is seeking an experienced Oracle Database Administrator (DBA) in Singapore to lead migrations from legacy hardware to upgraded systems. The role focuses on Oracle 19c, RAC environments, GoldenGate, Data Guard, and RMAN-based backup/recovery, ensuring availability and performance.

The successful candidate will manage end-to-end migrations, collaborate with infrastructure teams, perform migrations, configuration, cutover, and post-migration support while maintaining data integrity

Qualifications

• Strong hands-on experience as an Oracle DBA in enterprise environments.
• Expert-level Oracle GoldenGate experience.
• Proven experience migrating Oracle databases from old/legacy hardware to new hardware, including lift-and-shift migrations.
• Hands-on experience with RAC-server infrastructure and Data Guard configurations.
• Strong hands-on RMAN backup and recovery and performance tuning.

Responsibilities

• Perform Oracle database migrations from existing/legacy hardware to new or upgraded hardware, including lift-and-shift activities and end-to-end migration planning and execution.
• Support database migration projects involving RAC-server environments, including database setup, configuration, validation and cutover.
• Perform installation, configuration, upgrade and administration of Oracle Database 19c environments.
• Manage and maintain Oracle RAC and high-availability database environments.
• Design, configure and administer Oracle Data Guard for high availability and disaster recovery.
• Demonstrate strong hands-on expertise in Oracle GoldenGate, including configuration, replication management, monitoring, troubleshooting and performance optimisation.
• Perform RMAN backup and recovery activities, including backup strategy, recovery testing and database restoration.
• Conduct database health checks and performance optimisation/tuning, identifying and resolving database performance bottlenecks.

Skills

Oracle DBA

Oracle Database 19c

Oracle RAC

Oracle Data Guard

Oracle GoldenGate

RMAN backup & recovery

Migration planning & execution

Lift-and-shift migrations

Performance tuning

High availability

Tools

RAC-server infrastructure

Database migration tooling

Job description

We are seeking an experienced Oracle Database Administrator (DBA) with strong hands-on expertise in Oracle 19c, Oracle RAC/rack-server environments, GoldenGate and Data Guard. The ideal candidate will have proven experience supporting database migrations from legacy hardware to new/upgraded hardware, including lift-and-shift migrations, while maintaining database availability, performance and integrity.

Key Responsibilities

• Perform Oracle database migrations from existing/legacy hardware to new or upgraded hardware, including lift-and-shift activities and end-to-end migration planning and execution.
• Support database migration projects involving RAC-server environments, including database setup, configuration, validation and cutover.
• Perform installation, configuration, upgrade and administration of Oracle Database 19c environments.
• Manage and maintain Oracle RAC and high-availability database environments.
• Design, configure and administer Oracle Data Guard for high availability and disaster recovery.
• Demonstrate strong hands-on expertise in Oracle GoldenGate, including configuration, replication management, monitoring, troubleshooting and performance optimisation.
• Perform RMAN backup and recovery activities, including backup strategy, recovery testing and database restoration.
• Conduct database health checks and performance optimisation/tuning, identifying and resolving database performance bottlenecks.
• Plan and execute migration activities including pre-migration assessment, data migration, validation, testing, cutover and post-migration support.
• Work closely with infrastructure/server teams during hardware refresh and database migration activities to ensure smooth transition to the new environment.
• Troubleshoot database, replication, performance and migration-related issues and provide timely resolution.
• Ensure database availability, integrity, security and performance throughout migration and post-migration operations.
• Prepare and maintain technical documentation, migration plans, runbooks and operational procedures.

Key Requirements

• Strong hands-on experience as an Oracle DBA, preferably in enterprise environments.
• Strong expertise in Oracle Database 19c.
• Proven experience migrating Oracle databases from old/legacy hardware to new hardware, including lift-and-shift migrations.
• Hands-on experience with RAC-server/database infrastructure and database setup on new hardware.
• Expert-level Oracle GoldenGate experience is required.
• Strong experience with Oracle Data Guard.
• Strong hands-on experience with RMAN backup and recovery.
• Oracle database performance tuning and optimisation.
• Experience managing production database environments and supporting critical migration/cutover activities.
• Candidates should have recent, hands-on experience with Oracle database migration and modern hardware refresh projects, rather than experience limited to traditional DBA administration.

Note: This role is open for only Singapore citizens and PRs due to client requirements.