Oracle DBA - Contract

NTT SINGAPORE PTE. LTD.; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A technology firm in Singapore is seeking an experienced Oracle Database Administrator (DBA) for a 12-month renewable contract. The ideal candidate will install, configure, and maintain Oracle and SQL Server databases, ensuring optimal performance in mission-critical environments. Key responsibilities include applying security measures, mentoring junior staff, and conducting database migrations and upgrades. This challenging role will require participation in 24x7 support, addressing incidents and performance issues effectively.

Qualifications

• Hands-on experience with Oracle and SQL Server databases.
• Strong skills in database performance tuning and high-availability solutions.
• Experience in supporting mission-critical environments, especially in banking.

Responsibilities

• Install, configure, and maintain Oracle and SQL Server databases.
• Create and manage new databases, ensuring high performance and availability.
• Implement security measures and perform database patches and upgrades.
• Lead and mentor junior DBAs, participating in 24x7 support.

Skills

Database installation

Performance tuning

High-availability solutions

Oracle Database

SQL Server

Vulnerability assessments

Backup-Restore procedures

DataGuard configuration

Mentorship

Job description

We are looking for an experienced Oracle Database Administrator (DBA) with strong hands‑on skills in database installation, configuration, performance tuning, and high‑availability solutions. The ideal candidate will be supporting mission‑critical environments within the banking sector, ensuring database stability, security, and optimal performance.
This is 12 months renewable contract

Key Responsibilities:

• Install, configure, and maintain Oracle and SQL Server databases.
• Create and manage new databases, ensuring performance and availability.
• Harden and patch database instances based on vulnerability assessments.
• Configure and test Backup‑Restore procedures, ensuring recoverability.
• Set up and test DataGuard (Oracle) and AOAG (SQL Server).
• Perform switchover testing for DR and production environments.
• Execute database migration and upgrades across platforms/versions.
• Maintain accurate inventory of all database installations and assets.
• Troubleshoot and resolve database‑related incidents and performance issues.
• Support audit activities by providing required documentation and evidence.
• Implement database changes in accordance with change management policies.
• Document all processes and update operational runbooks.
• Lead and mentor junior DBAs and act as a point of escalation.
• Participate in 24x7 support (after‑hours/weekends/holidays as required).
• Perform change, release, incident, and problem management per SLAs.
• Address vulnerabilities and security risks raised by internal security teams.
• Conduct post‑implementation reviews and fine‑tuning of systems.