Job Information
Cognizant Oracle / Informix Database Administrator (DBA) in Krakow,KR-Galileo 8thfloor, Poland
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
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Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.