Oracle Exadata DBA Architect: RAC, Data Guard, HA

Cognizant; Mississauga; Hybrid; CAD 70,000 - 109,000; Full time

Job summary

Cognizant in Mississauga, Ontario, seeks an Oracle Exadata DBA Architect to lead design, implementation, and support of Exadata environments. Expertise in RAC, Data Guard, RMAN, and performance tuning is required for high availability and scalability.

Key responsibilities include deploying and upgrading Exadata, monitoring with AWR/ASH, implementing backup strategies, and collaborating across teams to deliver secure, resilient database platforms and automation improvements.

Qualifications

• Hands-on Exadata administration incl patching, tuning, capacity planning, and backup/recovery.
• Expertise in Oracle RAC, ASM, RMAN, Data Guard, Exadata Storage Servers, CellCLI, and DCLI.
• Knowledge of Oracle Database architecture including multitenant, compression, and resource management.
• Experience with high-availability and disaster recovery solutions.
• Proven database infrastructure architecture across storage, networking, and OS.
• Strong troubleshooting using AWR/ASH/ADDM and SQL tuning.
• Linux/Unix administration and automation using Shell, Python, or Ansible.

Responsibilities

• Design and architect Oracle Exadata solutions aligned with enterprise standards and business requirements.
• Administer and support Oracle RAC, ASM, RMAN, Data Guard, and Exadata Storage Servers.
• Lead Exadata deployments, migrations, upgrades, patching, and capacity planning initiatives.
• Monitor and optimize database performance using AWR, ASH, ADDM, and SQL tuning techniques.
• Develop high availability, disaster recovery, backup, and recovery strategies.
• Perform Exadata health checks, lifecycle management, and operational governance.
• Collaborate with infrastructure, security, application, and business teams to deliver resilient and secure database platforms.
• Drive continuous improvement through automation, operational standardization, and architectural enhancements.

Skills

Oracle Exadata

Oracle RAC

RMAN

Data Guard

Performance Tuning

AWR/ASH/ADDM

Shell Scripting

Python

Ansible

Linux/Unix

CellCLI

DCLI

Tools

Exadata Storage Servers

CellCLI

DCLI

Job description

Cognizant in Mississauga, Ontario, seeks an Oracle Exadata DBA Architect to lead design, implementation, and support of Exadata environments. Expertise in RAC, Data Guard, RMAN, and performance tuning is required for high availability and scalability.

Key responsibilities include deploying and upgrading Exadata, monitoring with AWR/ASH, implementing backup strategies, and collaborating across teams to deliver secure, resilient database platforms and automation improvements.