Qureos

Find The RightJob.

Senior Oracle DB & Application Administrator

Role Summary

As a Senior Oracle Database & Application Administrator , you will act as a Subject Matter Expert (SME) responsible for the design, administration, performance, security, and availability of Oracle databases and enterprise applications, primarily Oracle E‑Business Suite (EBS R12.2) on Oracle Database 19c , running on Linux/Unix platforms .

Key Responsibilities

  • Provide end‑to‑end administration, support, and enhancement of Oracle E‑Business Suite (R12.2) and associated Oracle Database 19c environments (production and non‑production).
  • Install, configure, patch, upgrade, tune, and maintain Oracle databases and Oracle E‑Business Suite application tiers.
  • Administer Oracle EBS security, workflows, auditing, concurrent managers, and application configurations.
  • Perform and manage database backup, restore, cloning, refresh, and disaster recovery activities in coordination with the infrastructure team.
  • Maintain high availability and data integrity through proper architecture design, monitoring, and operational controls.
  • Support refresh of non‑production environments from production as required.
  • Monitor database activity, application performance, and system resource usage to ensure optimal operation.
  • Analyze and resolve performance issues across the database tier, application tier, and concurrent processing within Oracle E‑Business Suite.
  • Conduct periodic database tuning, capacity planning, and forecasting of future resource needs.
  • Provide proactive performance reporting and recommendations to development and business teams.
  • Administer Linux / Unix operating systems, including installation, configuration, patching, upgrades, and security hardening.
  • Maintain strong working knowledge of Red Hat Linux in support of Oracle Database and Application Server products.
  • Ensure database and application security through policy definition, implementation of controls, and regular audits.
  • Contribute to ITGC, IT audit, and compliance activities, ensuring adherence to internal standards and best practices.
  • Define and enforce standards for database object security, integrity, and access control.
  • Collaborate with infrastructure, development, and business teams to provide technical guidance and best practices.
  • Troubleshoot and resolve database and application issues within agreed SLAs and OLAs internal an external.
  • Participate in on‑call and out‑of‑hours support on a planned or emergency basis.
  • Develop and maintain technical documentation, SOPs, and operational procedures.

Technical Skills

  • Oracle Database 19c (Core DBA administration, tuning, troubleshooting)
  • Oracle E‑Business Suite R12.2 (Apps DBA, security, workflows, concurrent manager)
  • Oracle RAC, Data Guard, Oracle Enterprise Manager
  • Oracle Single Sign‑On (SSO), WebLogic Administration
  • OBIEE WebLogic Administration, Oracle WCI Administration
  • Linux / Unix administration (Red Hat Linux)
  • SQL and PL/SQL development (monitoring, alerts, reporting, auditing)
  • Shell scripting and automation of day‑to‑day DBA tasks
  • Experience deploying Oracle Forms and Reports
  • Exposure to Apache and Tomcat (advantageous)

Minimum Qualifications

  • Bachelor’s or Master’s degree in Computer Science, Information Technology, or related field.
  • Minimum 5 years of experience as an Oracle Database / Applications DBA.
  • Proven experience supporting ERP environments, specifically Oracle E‑Business Suite R12.
  • Proven experience in database design, performance tuning, backup/recovery, and high availability.
  • Solid understanding of ITGC and IT audit processes.
  • Excellent English communication and documentation skills.

© 2026 Qureos. All rights reserved.