- 5+ years of experience in Data QA / DWH Testing / ETL Testing.
- Strong hands-on experience with SQL (Joins, CTEs, Window Functions, Aggregations, Stored Procedures).
- Experience in Python for test automation, scripting, and data validation.
- Strong understanding of ETL/ELT processes and data validation techniques.
- Experience with Source-to-Target Mapping (STM) validation.
- Positive knowledge of Fact & Dimension Tables, Star Schema, and Snowflake Schema.
- Experience working with enterprise Data Warehouse platforms (Snowflake, Redshift, Azure Synapse, BigQuery, Oracle, SQL Server, etc.).
- Familiarity with ETL tools such as Informatica, Talend, SSIS, DataStage, or dbt is a plus.
- Experience using JIRA, Git, and Agile methodologies.