ETL Tester

Key Responsibilities
Design and execute data quality testing strategies for data pipelines and warehouses
Validate ETL/ELT pipelines, transformations, and business logic
Perform data reconciliation, profiling, and anomaly detection
Write and execute SQL queries to validate data correctness and integrity
Test data ingestion from multiple sources (APIs, streaming, batch jobs)
Identify, document, and track data defects and quality issues
Work with Data Engineers to ensure data schema validation and versioning
Automate data validation checks where possible
Support production issue analysis and root cause identification