ETL Tester

2 days ago

Bengaluru, India Tata Consultancy Services Full time

Greetings from TCSTCS is hiring for ETL TesterDesired Experience Range: 5 to 10 YearsJob Location: Hyderabad , Bangalore, Chennai, Pune, KolkataTechnical 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 youTalent acquisition - TCS

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