Senior ETL Tester.

Location: Bangalore/Hyderabad/ Chennai.

Shifts: 11 AM to 8 PM.

Key Responsibilities :

- Perform end-to-end testing of ETL and data pipeline workflows from source systems to target data platforms.

- Validate data ingestion, transformation, aggregation, and business rules for accuracy and completeness.

- Execute data reconciliation and validation using SQL to identify mismatches and defects.

- Test full loads, incremental loads, and historical data scenarios.

- Validate data pipelines built using Azure Data Platform services.

- Perform Power BI dataset and report validation to ensure data accuracy.

- Support UAT, regression testing, and post-production data validation.

- Identify root causes of data defects and collaborate with ETL developers for resolution.

- Document test cases, test results, and defect details clearly.

Required Technical Skills :

- Strong experience in ETL / Data Warehouse testing.

- Advanced SQL skills (joins, subqueries, CTEs, aggregations, reconciliation queries).

- Hands-on experience with Azure Data Services, including:

- Azure Data Factory (ADF).

- Azure SQL Database / SQL Server.

- Microsoft Fabric.

- Experience validating data transformations and data models.

- Knowledge of data warehousing concepts (facts, dimensions).

- Experience validating Power BI datasets and reports.

- Familiarity with CI/CD and ticketing tools (Jira).

- Exposure to data quality and validation frameworks.