ETL Testing

Cognizant; Al Khobar; On-site; SAR 120,000 - 180,000; Full time

Job summary

Cognizant in Saudi Arabia seeks an experienced QA Tester with telecom focus to join our team. The role emphasizes functional, API, ETL, and end-to-end testing, plus database validation and data integrity across telecom platforms.

You will validate complex data transformations, develop test scenarios, and collaborate with business users during UAT/BAT, applying AI-driven approaches to improve ETL testing and overall quality.

Qualifications

• Mandatory telecom-domain project experience.
• Strong testing expertise across functional/API/ETL and data validation.
• Hands-on experience with SQL and Oracle databases.

Responsibilities

• Perform Functional, Integration, End-to-End (E2E), UAT, and BAT testing for telecom applications.
• Conduct API testing using Postman and validate service integrations across across systems.
• Execute ETL testing manually and with Informatica or similar tools.
• Validate data extraction, transformation, and loading processes for accuracy.
• Develop and execute test scenarios for complex telecom business processes.
• Log, track, and retest defects with a defect management tool.
• Craft and validate complex SQL queries for backend testing and data reconciliation.
• Collaborate with business users during UAT/BAT phases.
• Explore AI-driven approaches to enhance ETL testing.

Skills

Functional Testing

API Testing

End-to-End Testing

UAT/BAT Testing

Defect Management

SQL Queries

Data Validation

Analytical Thinking

Communication

Education

Bachelor's degree in Computer Science/IT/Engineering

Tools

Postman

ETL Tools (Informatica)

Oracle DB

Job description

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.

Key Responsibilities:

• 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.

Required Skills & Experience:

Mandatory experience in Telecom domain projects.

Strong expertise in:

• 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.

Preferred Qualifications:

• 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.

Work Requirements:

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