L3 Oracle DBA

3 days ago

Singapur, Singapore HCLTech Full time

Overview

Deputy Manager - Talent Acquisition Growth Markets, APME at HCLTech

We are seeking a highly skilled Oracle Database Administrator with deep expertise in Exadata, RAC, performance tuning, and database operations. The ideal candidate will bring extensive hands-on experience in managing mission-critical databases in complex production environments, with strong technical leadership, troubleshooting, and performance optimization skills.

Responsibilities
  • Manage and administer large-scale Oracle Exadata environments, ensuring high availability, reliability, and performance.
  • Perform installations, upgrades, patching, and migrations of Oracle databases and Exadata systems.
  • Conduct database health checks, monitoring, and proactive performance tuning to optimize efficiency.
  • Administer and troubleshoot RAC, ASM, Dataguard, and GRID Infrastructure.
  • Implement and support backup and recovery strategies using RMAN, datapump, and export/import utilities.
  • Automate routine DBA tasks using scripting and database automation tools.
  • Collaborate with development teams to analyze and resolve database-related issues.
  • Provide 24x7 production support and act as an escalation point for critical incidents.
  • Maintain compliance with ITIL-based Change/Release Management processes.
  • Document processes, configurations, and troubleshooting steps for knowledge sharing.
  • Work closely with offshore vendors and cross-functional teams to ensure seamless operations.
Requirements
  • 10–12 years of production support experience as an Oracle DBA, with at least 6 years of hands-on experience with Exadata.
  • Proven track record managing high-performance, high-capacity databases in critical environments.
  • Strong expertise in Oracle 11gR1/R2 RAC including build, administration, troubleshooting, and tuning.
  • Hands-on experience with Clusterware (GRID Infrastructure), ASM, and Dataguard administration.
  • Skilled in SQL & database-level performance tuning, backup, and recovery.
  • Proficiency in Oracle Enterprise Manager Grid Control for monitoring and management.
  • Strong knowledge of Solaris, Linux, and AIX OS, with advanced shell scripting skills.
  • Ability to work in a 24x7 global support model.
  • Excellent troubleshooting, analytical, and problem-solving skills.
  • Strong communication and coordination skills with a collaborative mindset.
  • Experience with database automation, ITIL processes, and offshore vendor management.
Job Details
  • Seniority level: Associate
  • Employment type: Full-time
  • Job function: Information Technology
  • Industries: IT Services and IT Consulting

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