ETL Testing

Job Summary:

• We are seeking an experienced QA Tester with a strong background in Telecom projects to join our team. The ideal candidate will possess extensive experience in functional testing, API testing, ETL testing, database validation, and end-to-end testing. The role requires hands-on expertise in testing large-scale applications, validating complex data transformations, and ensuring high-quality deliverables across telecom platforms.

• Perform Functional, Integration, End-to-End (E2E), UAT, and BAT testing for telecom applications.
• Conduct API testing using "Postman" and validate service integrations across multiple systems.
• Execute ETL testing both manually and using ETL tools such as Informatica.
• Validate data extraction, transformation, and loading processes to ensure data accuracy and integrity.
• Develop and execute test scenarios for complex telecom business processes.
• Perform defect identification, logging, tracking, and retesting using defect management tools.
• Create and validate complex SQL queries for backend database testing and data reconciliation.
• Work with Oracle databases and perform field-level mapping validations.
• Apply business rules and logic to validate data movement and staging environments.
• Collaborate with business users and stakeholders during UAT/BAT phases.
• Explore and implement AI-driven approaches in ETL testing to improve testing efficiency and quality.

Mandatory experience in Telecom domain projects.

• Functional Testing
• API Testing (Postman)
• Integration Testing
• End-to-End Testing
• UAT/BAT Testing
• Defect Management
• Hands-on experience in ETL Testing, including tools such as Informatica.
• Knowledge of AI implementation in ETL Testing and test automation initiatives.
• Advanced SQL skills with experience writing and validating complex queries.
• Experience working with Oracle databases and data validation techniques.
• Strong understanding of database structures, data mappings, and staging environments.
• Excellent analytical, troubleshooting, and communication skills.

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.
• Experience working in client-facing environments.
• Familiarity with Agile/Scrum delivery methodologies.

• Willingness to work from the client office, Sunday through Thursday.
• Ability to collaborate effectively with cross-functional teams and stakeholders.

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.