Responsibilities :
Perform end-to-end testing of ETL workflows, data pipelines, and data warehouse solutions. Validate source-to-target data mappings and transformation logic. Develop and execute ETL test cases, test plans, and test scenarios. Perform data reconciliation and data quality validation. Validate data migration, data integration, and data conversion processes. Execute functional, integration, regression, and system testing for data applications. Identify, analyze, and report data defects and inconsistencies. Write and execute complex SQL queries for backend data validation. Collaborate with Data Engineers, Business Analysts, and Development teams to ensure data accuracy. Generate test reports and quality metrics for stakeholders. Participate in Agile/Scrum ceremonies and contribute to continuous improvement initiatives.