We are looking for an experienced ETL Testing / Database Testing skilled with strong hands-on expertise in ETL testing, advanced SQL query writing, data validation, and data warehouse testing. The candidate should have experience in validating complex data transformations, performing source-to-target reconciliation, and identifying data quality issues across large-scale enterprise data environments.

Key Responsibilities:

- Perform end-to-end ETL testing, database testing, and data warehouse validation.

- Write and execute complex SQL queries for data verification and reconciliation.

- Perform source-to-target validation based on mapping documents and transformation rules.

- Validate data completeness, accuracy, consistency, record counts, duplicates, null values, and referential integrity.

- Test initial and incremental data loads, including insert, update, and delete scenarios.

- Validate fact and dimension tables, data models, and data warehouse schemas.

- Identify, document, track, and retest defects in coordination with development and business teams.

- Prepare test plans, test scenarios, test cases, test data, and test execution reports.





- Perform data migration testing, regression testing, system integration testing, and data quality checks.

- Collaborate with cross-functional teams to ensure data accuracy and reliable delivery.

Required Skills & Qualifications:

- 512 years of experience in ETL testing, database testing, or data warehouse testing.

- Strong hands-on experience in SQL and complex query writing.

- Expertise in source-to-target validation, data reconciliation, and transformation testing.

- Good understanding of data warehouse concepts, fact and dimension tables, and star/snowflake schemas.

- Experience with ETL tools such as Informatica, IBM DataStage, SSIS, or equivalent.

- Knowledge of data quality testing, initial/incremental loads, and defect management.

- Experience working with databases such as Oracle, SQL Server, Teradata, or similar.

- Strong analytical, troubleshooting, and problem-solving skills.

- Experience in banking, financial services, or other enterprise data environments is preferred.

📌 Etl Tester (Hyderabad)
🏢 Elabs Infotech
📍 Hyderabad