Data QA, Data Quality, SQL, ETL Testing, Python, HL7, DICOM, Health Informatics, AWS Glue, Athena, S3, Redshift, Tableau, API Testing, Automation, Agile, Validatar, QuerySurge, ICEDQ In-depth knowledge of developing SQL scripts using functions, grouping operations, subqueries, analytical functions, and joins for ETL testing.