Role Overview
We are seeking an experienced ETL Tester / Data Quality Engineer with 7+ years of hands-on experience testing data transformation and data integration solutions. The ideal candidate will have strong expertise in validating end-to-end data pipelines, transformation logic, data quality, and reconciliation across contemporary cloud data platforms, particularly Snowflake, dbt, and Fivetran or comparable tools.

Key Responsibilities
Design, develop, and execute test plans, test cases, and test scripts for ETL/ELT and data transformation pipelines.
Validate source-to-target data mappings, transformation rules, business logic, and data lineage.Perform data reconciliation, completeness, accuracy, consistency, duplication, and referential-integrity checks.
Test data ingestion pipelines built using Fivetran or similar integration tools.
Validate data transformations and models developed in dbt, including incremental models, snapshots, macros, tests, and dependencies.
Perform SQL-based validation of data stored in Snowflake, including large-volume datasets and complex transformations.




Identify, log, track, and retest data defects in collaboration with data engineers, analytics engineers, developers, and business stakeholders.
Develop and maintain automated data validation and regression test frameworks where applicable.
Validate error handling, exception processing, rerun/recovery mechanisms, and audit/control tables.
Support integration, system, regression, user acceptance, and production validation testing.
Review requirements, source-to-target mapping documents, data models, and technical design documents to identify test scenarios.
Monitor data quality issues and provide root-cause analysis support.
Ensure test evidence, execution reports, and defect documentation are complete and maintained.
Required Skills & Qualifications
7+ years of experience in ETL/ELT testing, data warehouse testing, or data quality testing.
Strong hands-on experience writing complex SQL que

📌 ETL Test Engineer (Bengaluru)
🏢 NTT DATA Services
📍 Bengaluru