ETL Tester

17 hours ago

Bengaluru, India Tata Consultancy Services Full time

Greetings from TCS TCS is hiring for ETL Tester Desired Experience Range: 5 to 10 Years Job Location: Hyderabad , Bangalore, Chennai, Pune, Kolkata Technical Skills: - 5+ years of experience in QA or Quality Engineering roles in data-driven environments. - Analyze the data requirements from Source to Target Mapping requirements - Hands-on experience with test automation frameworks (e.g., PyTest, Great Expectations, dbt tests). - Proficient in SQL for validating data transformations across platforms like Redshift, Postgres, or Snowflake. - Familiarity with ETL testing, data ingestion pipelines, and data quality validation techniques. - Experience testing and validating BI dashboards and reports, preferably using tools like Tableau. - Exposure to CI/CD practices and integration of tests into deployment pipelines. - Ability to read and write test cases in Python or other scripting languages. Experience with version control tools (e.g., Git) and JIRA or similar test tracking systems. Good to have: - Experience testing unstructured data pipelines, including logs, PDF documents, or application telemetry. - Familiarity with data profiling and anomaly detection tools. - Exposure to cloud platforms, especially AWS (S3, Redshift, Glue). - Understanding of analytical data modeling concepts, including Star Schema and OLAP structures. Knowledge of testing AI/ML models, particularly for consistency, fairness, or accuracy in predictions. Responsibilities: - Define, implement, and maintain automated test suites to validate data pipelines, transformations, and analytical outputs. - Collaborate with data engineers, modelers, and AI engineers to establish and enforce data quality standards and best practices. - Conduct functional, regression, and integration testing of ETL jobs, data ingestion pipelines, and model outputs. - Develop test strategies to validate structured (OLTP/OLAP) and unstructured data (logs, PDFs, etc.). - Build automated tools and dashboards for data profiling, data drift detection, and quality scorecards. - Identify root causes of data quality issues and coordinate remediation efforts with engineering teams. - Validate data accuracy across Redshift, Postgres, and data marts using SQL and scripting tools. - Ensure traceability from business rules and requirements to test cases and final outputs. Participate in Agile/Scrum processes including sprint planning, demos, and retrospectives. Thank you Talent acquisition - TCS

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