Data Tester

Key Responsibilities: Apply strong knowledge of Data Warehouse concepts and perform ETL validations using tools such as Informatica, Matillion, and DBT. Execute and manage complex queries across databases including Snowflake, Oracle, Netezza, SQL Server, DynamoDB, DB2, and Postgres. Conduct data validation and troubleshooting using SQL scripting. Develop and maintain automation scripts using tools such as QuerySurge, Tosca DI, Python, Java, and Selenium to enhance testing efficiency and support regression testing. Perform data validation and reporting using BI tools such as MicroStrategy, Power BI, and Tableau. Author comprehensive test scripts to validate data processes and outcomes. Conduct regression testing to ensure consistent functionality of data applications. Analyze defects and collaborate with development teams to ensure timely resolution. Create, manage, and maintain test data sets for realistic and consistent testing scenarios. Apply appropriate testing methodologies to ens...