Database Administrator (Contract) - Part-Time

Key Responsibilities

• Responsible for the day-to-day administration, monitoring, maintenance, and support of enterprise database systems.
• Install, configure, patch, upgrade, and maintain Oracle, MySQL/MariaDB, Microsoft SQL Server, and Azure SQL Database environments.
• Perform database migrations and upgrades with minimal or zero downtime.
• Configure and manage High Availability (HA) solutions including Oracle Data Guard, Oracle RAC, MySQL/MariaDB Replication, and delayed replication.
• Install, configure, and administer MaxScale for database clustering, routing, and load balancing.
• Manage Oracle ASM storage and perform database refresh activities across Production, UAT, and Test environments.
• Perform database backup, recovery, and disaster recovery activities using RMAN, Data Pump, Flashback Database, and Flashback Table.
• Monitor database health, availability, capacity, and performance; perform proactive performance tuning and optimization.
• Implement database security, user management, access controls, and compliance requirements.
• Lead and manage database changes through established change management processes and provide timely status updates to stakeholders.
• Investigate production incidents, perform root cause analysis, and implement temporary or permanent resolutions.
• Support disaster recovery drills and business continuity testing.
• Work closely with application, infrastructure, and project teams during deployments, migrations, and production releases.
• Lead technical discussions and provide guidance and mentoring to junior database administrators.
• Prepare and maintain technical documentation, operational procedures, and standard operating processes.
• Participate in a 24x7 on-call support rotation for critical production systems.

Requirements

• Bachelor's Degree in Computer Science, Information Technology, Engineering, or a related discipline.
• Minimum 5–8 years of hands-on database administration experience in enterprise environments.
• Strong experience administering Oracle Database (11g, 12c, 19c), including installation, patching, upgrades, Data Guard, RAC, and ASM.
• Strong experience administering Microsoft SQL Server (2012/2014/2018 or later), including installation, patching, maintenance, and performance tuning.
• Experience managing MySQL/MariaDB databases, including replication, master-slave configuration, migration, and high availability.
• Experience configuring and administering MaxScale and multi-cluster environments.
• Experience with Azure SQL Database (PaaS) administration, migration, and performance tuning.
• Strong knowledge of database backup and recovery strategies using RMAN, Data Pump, and native database utilities.
• Experience with database performance tuning, monitoring, capacity planning, and troubleshooting.
• Experience supporting high availability, disaster recovery, and business continuity solutions.
• Good understanding of change management, incident management, and IT operational processes.
• Excellent analytical, troubleshooting, and problem-solving skills.
• Strong communication and stakeholder management skills.
• Ability to work independently and provide 24x7 operational support when required.

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“This is in partnership with the Employment and EmployabilityInstitute Pte Ltd (“e2i”).

e2i is the empowering network for workers and employersseeking employment and employability solutions. e2i serves as a bridge betweenworkers and employers, connecting with workers to offer job security throughjob-matching, career guidance and skills upgrading services, and partneringemployers to address their manpower needs through recruitment, training, andjob redesign solutions. e2i is a tripartite initiative of the National TradesUnion Congress set up to support nation-wide manpower and skills upgradinginitiatives. By applying for this role, you consent to QuesscorpSingapore’s PDPA and e2i’s PDPA.”