Designs and executes comprehensive data quality testing strategies for ETL, Big Data, and data-intensive applications, including BAO, MDM, and data migrations. Develops a deep understanding of business requirements and designs optimized test scenarios to ensure data quality and integrity. Plans and executes testing activities, estimates work efforts, creates test cases, and identifies test environment and test data requirements. Utilizes manual and automation solutions to execute test cases, reports test status, and performs defect creation, triage, and resolution. Analyzes test outcomes for continuous improvements using analytical and cognitive techniques and tools.