Senior QA Engineer (ETL Testing)

Nielseniq India; Pune District, Chennai District; On-site; INR 800,000 - 1,400,000; Full time

Job summary

Nielseniq India is seeking a QA Engineer with strong expertise in ETL Testing, Data Validation, Python, PySpark, Databricks, SQL, Selenium, Playwright, and Apache Airflow. The role focuses on validating end-to-end data pipelines, ensuring data quality, and automating functional and regression testing across cloud-based data platforms.

The ideal candidate should have hands-on automation experience, knowledge of modern data engineering concepts, and a proactive approach to testing to ensure

Qualifications

• Proven experience in ETL testing and data warehouse testing.
• Proficient in Python scripting and test automation.
• Strong PySpark knowledge and distributed processing.
• Experience with Databricks platform.
• Advanced SQL skills with data validation.
• Experience with Playwright automation.
• Strong Selenium WebDriver expertise.
• Experience testing Apache Airflow workflows.
• API testing using Postman or Python libraries.
• Familiarity with Agile/Scrum methodologies.
• Experience with defect tracking and test management tools.

Skills

ETL Testing

Data Warehouse Testing

Python

PySpark

Databricks

SQL

Playwright

Selenium WebDriver

Apache Airflow

API testing

Agile/Scrum

Defect tracking

Tools

Playwright

Selenium WebDriver

Databricks

Postman

Job description

Job Summary:

We are seeking a highly skilled and detail-oriented QA Engineer with strong expertise in ETL Testing, Data Validation, Python, PySpark, Databricks, SQL, Selenium, Playwright, and Apache Airflow. The ideal candidate will be responsible for validating end-to-end data pipelines, ensuring data quality, testing large-scale data processing frameworks, and automating functional and regression testing activities across modern cloud-based data platforms.

This role requires a strong understanding of data engineering concepts, automation frameworks, and analytical thinking to ensure the accuracy, reliability, and performance of enterprise data solutions.

Required Skills:

Must-Have Technical Skills

• Strong experience in ETL Testing and Data Warehouse Testing.
• Hands-on experience with Python scripting and test automation.
• Strong knowledge of PySpark and distributed data processing.
• Experience working with Databricks platform.
• Advanced SQL skills with complex query writing and data validation.
• Hands-on experience with Playwright automation framework.
• Strong expertise in Selenium WebDriver.
• Experience testing Apache Airflow workflows and DAGs.
• Experience in API testing using tools such as Postman or Python libraries.
• Strong understanding of Agile/Scrum methodologies.
• Experience with defect tracking and test management tools.

Good-to-Have Skills:

• Azure Data Factory (ADF)
• Azure Data Lake Storage (ADLS)
• Azure DevOps
• CI/CD pipelines
• Git/GitHub
• Data Analytics and Reporting tools
• Performance and Load Testing

Sucess Criteria:

• High-quality validation of ETL and data engineering solutions.
• Increased automation coverage across applications and data pipelines.
• Reduction in production defects through proactive testing.
• Reliable validation of Databricks, PySpark, and Airflow workflows.
• Strong collaboration with development and data engineering teams.