Oracle Database Administrator

We are seeking a highly skilled Oracle Database Administrator (DBA) with extensive experience managing enterprise Oracle database environments. The ideal candidate will possess deep expertise in Oracle database modernization initiatives, including upgrades, migrations, high availability, disaster recovery, security compliance, and performance optimization. This role requires a proactive professional capable of driving complex database lifecycle activities while ensuring operational stability, scalability, and security across mission-critical environments.

In this role, you will

• Lead Oracle Database upgrade initiatives to Oracle 19c, including assessments, planning, testing, implementation, validation, and rollback strategies.

• Plan and execute Oracle database migrations from AIX to Linux platforms utilizing RMAN, Data Pump, and other migration methodologies.

• Manage Oracle Data Guard and Data Guard Broker environments, ensuring high availability, disaster recovery readiness, and successful failover/switchover operations.

• Conduct database security assessments using Oracle DBSAT, identify vulnerabilities, and implement remediation plans to meet compliance requirements.

• Utilize Oracle Autonomous Health Framework (AHF), including ORAchk, EXAchk, and Trace File Analyzer, for proactive monitoring, diagnostics, and root cause analysis.

• Support Oracle Identity Management integrations, user authentication, authorization, provisioning, and access governance processes.

• Perform database administration activities including installation, configuration, patching, backup and recovery, cloning, refreshes, monitoring, and performance tuning.

• Lead database decommissioning and retirement efforts, ensuring data archival, dependency validation, compliance adherence, and proper documentation.

• Collaborate with application, infrastructure, security, storage, and network teams to deliver database-related projects and operational support.

• Develop and maintain implementation plans, technical runbooks, operational procedures, risk assessments, and knowledge transfer documentation.

• 8+ years of hands-on Oracle Database Administration experience supporting enterprise environments.

• Strong expertise with Oracle Database versions 11g, 12c, 18c, and 19c.

• Proven experience performing Oracle 19c upgrades using AutoUpgrade, DBUA, and manual upgrade methodologies.

• Extensive knowledge of Oracle Data Guard and Data Guard Broker administration for business continuity and disaster recovery.

• Experience conducting Oracle Database Security Assessment Tool (DBSAT) reviews and implementing security hardening recommendations.

• Hands-on experience with Oracle Autonomous Health Framework (AHF), including ORAchk, EXAchk, and Trace File Analyzer.

• Proven expertise in Oracle database migrations from AIX to Linux environments.

• Strong knowledge of RMAN backup and recovery, database cloning, SQL tuning, performance optimization, Oracle networking, and listener administration.

• Working knowledge of Linux and AIX operating systems, shell scripting, storage architecture, and infrastructure dependencies.

• Ability to troubleshoot complex production issues, perform root cause analysis, and drive resolutions in high-pressure environments.

Preferred Qualifications

• Oracle Certified Professional (OCP) or equivalent Oracle database certification.

• Experience supporting large-scale enterprise Oracle database environments across production and non-production landscapes.

• Background working within highly regulated environments requiring audit readiness, security compliance, and structured change management.

• Experience with Oracle RAC, Grid Infrastructure, ASM, Oracle Enterprise Manager (OEM), GoldenGate, or cloud-based database deployments.

• Familiarity with cloud migration strategies involving Oracle workloads on AWS, Azure, or Oracle Cloud Infrastructure (OCI).

• Strong documentation and stakeholder communication skills with the ability to provide executive-level updates.

Success Measures

The successful candidate will:

• Execute Oracle database upgrades and migrations with minimal operational risk.

• Maintain highly available, secure, and performant Oracle database environments.

• Improve operational efficiency through proactive monitoring, automation, and best-practice database administration.

Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

• Medical/Dental/Vision/Life Insurance

• Paid holidays plus Paid Time Off

• 401(k) plan and contributions

• Long-term/Short-term Disability

• Paid Parental Leave

• Employee Stock Purchase Plan

Work model:

At Cognizant, we strive to provide flexibility wherever possible, and we are here to support a healthy work-life balance though our various wellbeing programs. Based on this role’s business requirements, this is an onsite role requiring 5 days a week at client site in Palm Beach Gardens, FL, USA.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.