Oracle DBA: Performance, Security & High Availability

Jaffer Business Systems (Private) Limited; Karachi Division; On-site; PKR 1,800,000 - 3,000,000; Full time

Job summary

Jaffer Business Systems (JBS) in Karachi is seeking an experienced Oracle Database Administrator to manage and optimize Oracle database systems across development, testing, and production environments.

The ideal candidate will be responsible for database upgrades, performance tuning, backup and recovery, high availability, disaster recovery, and database security to ensure system reliability, availability, and optimal performance.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related field.
• 3–5 years of relevant Oracle database administration experience.
• Oracle Database certification is an advantage.

Responsibilities

• Install, configure, maintain, and upgrade Oracle database systems across development, testing, and production environments.
• Perform core database upgrades and manage Oracle APEX installation and configuration.
• Implement and manage database backup and recovery strategies using RMAN and Data Guard.
• Monitor database health, perform proactive performance tuning, and resolve performance bottlenecks.
• Support high availability and disaster recovery architectures, including Oracle RAC, ASM, and standby databases.
• Enforce database security through role-based access control, encryption, auditing, and vulnerability mitigation.
• Automate routine database administration tasks using Shell scripting, SQL, and PL/SQL.
• Conduct root cause analysis of database incidents and resolve issues within agreed timelines.
• Maintain comprehensive documentation of database configurations, operational processes, procedures, and policies.
• Contribute to database architecture design and participate in large-scale database rollout and implementation projects.
• Collaborate with application and infrastructure teams to ensure seamless database integration, stability, and optimal performance.

Skills

Oracle DB

SQL performance tuning

RMAN

Data Guard

Oracle RAC

ASM

Oracle APEX

Unix/Linux

Shell scripting

Security & auditing

Education

Bachelor's degree in Computer Science/IT

Oracle Database Certification (advantage)

Job description

Jaffer Business Systems (JBS) in Karachi is seeking an experienced Oracle Database Administrator to manage and optimize Oracle database systems across development, testing, and production environments.

The ideal candidate will be responsible for database upgrades, performance tuning, backup and recovery, high availability, disaster recovery, and database security to ensure system reliability, availability, and optimal performance.