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ETL Tester

ETL Tester

ConfidentialHyderabad / Secunderabad, Telangana
30+ days ago
Job description

ETL Tester

Key Responsibilities :

  • Develop, execute, and maintain ETL test plans and test cases based on project requirements and specifications.
  • Validate data extraction, transformation, and loading processes across multiple sources and target systems such as data warehouses and data lakes.
  • Identify, document, and report defects within the ETL pipeline; collaborate with development teams for timely resolution.
  • Perform data reconciliation by comparing source data with transformed and loaded outputs to ensure accuracy and integrity.
  • Execute regression testing to confirm that changes in ETL processes do not disrupt existing functionality.
  • Conduct performance testing to evaluate ETL pipeline behavior under various data loads.
  • Validate data mappings and transformation logic between source and target systems.
  • Participate in code reviews and contribute to testing process improvements.
  • Develop and maintain automated testing scripts for repetitive or complex testing scenarios.
  • Document test cases, defects, and results to ensure traceability and audit readiness.
  • Assist in troubleshooting and debugging data issues in collaboration with engineering and analytics teams.
  • Communicate test progress and results effectively to business analysts, developers, and stakeholders.

Required Skills & Qualifications :

  • Bachelor's degree in Computer Science, Information Technology, or a related discipline.
  • 2–5 years of hands-on experience in ETL testing or data validation roles.
  • Strong knowledge of ETL tools such as Informatica , Talend , or SSIS , and solid understanding of data warehousing principles.
  • Proficiency in writing and executing complex SQL queries for data validation and issue investigation.
  • Experience with relational database systems (e.g., Oracle, SQL Server, MySQL, PostgreSQL).
  • Understanding of data migration, integration, and transformation concepts.
  • Familiarity with data modeling, schema design, and best practices for data quality.
  • Experience in defect tracking and test documentation.
  • Analytical mindset with excellent attention to detail and problem-solving abilities.
  • Strong communication skills, both written and verbal.
  • Ability to work independently and collaboratively in a fast-paced, team-oriented environment.

    • Preferred Qualifications :

  • Experience with cloud-based ETL platforms such as AWS Glue or Azure Data Factory .
  • Exposure to Agile and Scrum methodologies.
  • Certifications in ETL testing, data analysis, or quality assurance frameworks.
  • Familiarity with automation tools such as Selenium , QTP , or domain-specific testing frameworks.

    • Skills Required

    Test Automation, Etl Testing, Etl

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    Etl Tester • Hyderabad / Secunderabad, Telangana