Oracle Database Administrator

20 hours ago

Central Region, Singapore PERCEPT SOLUTIONS PTE. LTD. Full time $120,000 - $180,000 per year

We are looking an experienced Oracle Database Administrator (DBA) to manage, maintain, and optimize our mission-critical databases. The candidate will have a strong background in Oracle, SQL Server, and MariaDB/MySQL administration, including performance tuning, backup/recovery, high availability, and security.

Key Responsibilities:

  • Install, configure, and upgrade Oracle 11g, 12c and 19c and if any experience in MariaDB/MySQL database is added advantage.
  • Administer production and non-production databases, ensuring high availability and performance.
  • Monitor database health, identify bottlenecks, and implement performance tuning (SQL tuning, indexing, query optimization).
  • Manage database backup, recovery, disaster recovery (DR), and high availability (Oracle RAC, Data Guard, ASM, SQL Server Always On, MariaDB Replication/Clustering).
  • Implement database security, user management, and auditing in line with compliance standards.
  • Plan and execute database patching, upgrades, and migrations with minimal downtime.
  • Collaborate with application teams to design efficient database schemas and optimize queries.
  • Troubleshoot database issues, analyze root causes, and provide timely resolutions.
  • Develop and maintain scripts for automation of routine tasks.
  • Provide 24x7 support for production systems on a rotational basis.

Required Skills & Qualifications:

  • Minimum 5+ years' hands-on experience in Oracle database administration.
  • Strong expertise in Oracle RAC, ASM, and Data Guard.
  • knowledge of MariaDB/MySQL replication, clustering, and HA/DR configurations is advantage.
  • Proficiency in backup and recovery using RMAN, SQL native tools, and mariabackup.
  • Expertise in performance tuning, query optimization, and storage engine management (InnoDB, MyISAM).
  • Knowledge of database security best practices and auditing.
  • Familiarity with UNIX/Linux environments and shell scripting.

EA Licence No.:18S9405 / EA Reg. No.:R1330864

Percept Solutions is expanding and actively seeking talented individuals. We encourage applicants to follow Percept Solutions on LinkedIn at to stay informed about new opportunities and events.

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