Oracle / Informix Database Administrator (DBA)
Job Summary
We are seeking an experienced Oracle and Informix Database Professional to manage, maintain, and support enterprise database environments. The role involves ensuring high availability, performance optimization, data security, and reliable backup and recovery for mission-critical applications.
Key Responsibilities
Database Administration & Support
- Install, configure, upgrade, and maintain Oracle (10g/11g/12c/19c) and IBM Informix databases.
- Perform database provisioning, cloning, and environment refreshes (DEV, TEST, UAT, PROD).
- Monitor database health, capacity, and availability.
- Handle database incidents, service requests, root cause analysis, and problem resolution.
Performance & Tuning
- Analyze and optimize SQL queries, indexes, and database structures.
- Perform performance tuning using tools such as:
- Oracle AWR, ADDM, OEM
- Informix onstat utilities
- Identify and resolve locking, blocking, and bottleneck issues.
Backup, Recovery & DR
- Design and maintain backup and recovery strategies:
- Oracle RMAN
- Informix ontape / onbar
- Perform regular restore tests and disaster recovery drills.
- Support high availability and DR solutions (Data Guard, replication, Informix HDR/RSS).
Required Skills & Experience
Technical Skills
- Strong hands-on experience with:
- Oracle Database Administration
- IBM Informix Database Administration
- Good knowledge of:
- SQL, PL/SQL
- Unix/Linux operating systems
- Backup & recovery strategies
- Experience with database upgrades and migrations.
- Understanding of networking basics and storage concepts.
What We Offer
- Private healthcare, life insurance, and cafeteria benefits
- Training programs and certifications
- Inclusive culture and volunteering opportunities
- Employee referral program
- Collaborative, innovative environment
#LI-1_MS1
About Cognizant:
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.
Additional employment information
Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.
If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.











