Senior Database Administrator

Goldtech Resources Pte Ltd; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Goldtech Resources Pte Ltd seeks a Senior Database Administrator to join our Managed Services team. You will oversee Oracle and SQL Server databases in a 24x7 enterprise environment, driving performance, security, and reliability across mission-critical systems.

You will lead optimization, hardening, migrations, and automation, collaborating with internal teams and customers to uphold system integrity and ensure business continuity. 5+ years of hands-on experience required.

Qualifications

• Bachelor’s Degree in IT, IS, Computer Science, or related disciplines.
• Minimum 5 years of hands-on Oracle and Microsoft SQL database administration experience.
• Strong proficiency with Oracle 12c/19c, Oracle RAC, SQL Server 2016–2022, and cloud environments (Azure/AWS).
• Skilled in database backup, recovery, security implementation, tuning, and high-availability environments.
• Solid understanding of UNIX and Windows OS.
• Strong analytical, troubleshooting, and communication skills.
• Ability to work independently in a fast-paced operational environment.
• Experience supporting government sector environments is preferred.

Responsibilities

• Manage and administer Oracle and SQL Server databases in a 24x7 enterprise environment
• Conduct daily database health checks, performance tuning, optimization, and capacity planning
• Implement database security measures, hardening standards, and patches
• Automate database setup, backup, restore, and monitoring processes
• Create and configure database structures, files, logs, indexes, and storage allocations
• Oversee housekeeping activities, object validation, fragmentation checks, and re-indexing
• Verify database integrity during system upgrades, deployments, and maintenance windows
• Respond to database alerts, anomalies, and incidents with timely troubleshooting and root cause analysis
• Work with service desk teams, customers, and third-party vendors to resolve database-related issues quickly
• Support DR execution and ensure successful rebuilds for production or DR systems
• Maintain accurate documentation including deployment guides, checklists, operations manuals, and DR procedures
• Prepare monthly reports on database uptime, performance, and growth trending
• Produce ad-hoc investigative reports for audits, capacity planning, and problem resolution

Skills

Database administration

Performance tuning

Automation

Documentation

Troubleshooting

Communication skills

Independent work

Education

Bachelor's Degree in IT/IS/CS

Tools

Oracle 12c/19c

Oracle RAC

SQL Server 2016-2022

Azure

AWS

UNIX

Windows OS

Job description

About the Role

We are looking for a results-driven Senior Database Administrator to join our Managed Services team and drive enterprise-grade database reliability, security, and performance across mission-critical environments. This role is ideal for a seasoned Oracle and Microsoft SQL professional who thrives in a high-availability 24x7 operations setting and is passionate about delivering operational excellence at scale.

You will be responsible for end-to-end database administration, performance engineering, and L2/L3 support for enterprise systems. You will lead database optimization, hardening, migration, and automation initiatives, while partnering closely with internal teams and customers to uphold system integrity and ensure seamless business continuity.

Key Responsibilities

Database Operations & Performance Management

• Manage and administer Oracle and SQL Server databases in a 24x7 enterprise environment
• Conduct daily database health checks, performance tuning, optimization, and capacity planning
• Implement database security measures, hardening standards, and patches
• Automate database setup, backup, restore, and monitoring processes

Database Administration & Maintenance

• Create and configure database structures, files, logs, indexes, and storage allocations
• Oversee housekeeping activities, object validation, fragmentation checks, and re-indexing
• Verify database integrity during system upgrades, deployments, and maintenance windows

Incident & Problem Management

• Respond to database alerts, anomalies, and incidents with timely troubleshooting and root cause analysis
• Work with service desk teams, customers, and third-party vendors to resolve database-related issues quickly
• Support DR execution and ensure successful rebuilds for production or DR systems

Documentation & Reporting

• Maintain accurate documentation including deployment guides, checklists, operations manuals, and DR procedures
• Prepare monthly reports on database uptime, performance, and growth trending
• Produce ad-hoc investigative reports for audits, capacity planning, and problem resolution

Requirements

• Bachelor’s Degree in IT, IS, Computer Science, or related disciplines
• Minimum 5 years of hands-on Oracle and Microsoft SQL database administration experience
• Strong proficiency with Oracle 12c/19c, Oracle RAC, SQL Server 2016–2022, and cloud environments (Azure/AWS)
• Skilled in database backup, recovery, security implementation, tuning, and high-availability environments
• Solid understanding of UNIX and Windows OS
• Strong analytical, troubleshooting, and communication skills
• Ability to work independently in a fast-paced operational environment
• Experience supporting government sector environments is preferred