ETL Testing Engineer With Python

Position Description

Job Title: ETL Testing Engineer

Experience: 3-8 Years

Location: Bangalore

Employment Type: Full-time

Job Summary:

We are looking for an experienced ETL/SQL/Python Testing Engineer to design, develop, and execute test cases for data pipelines, ETL processes, and database systems. The ideal candidate should have strong expertise in SQL querying, ETL validation, Python scripting, and test automation to ensure data accuracy, completeness, and performance.

Key Responsibilities:

• Develop and execute ETL test cases to validate data extraction, transformation, and loading processes.
• Has experience in ETL pipeline testing in ADB environment.
• Write complex SQL queries to verify data integrity, consistency, and correctness across source and target systems.
• Automate ETL testing workflows using Python, PyTest, or other testing frameworks.
• Perform data reconciliation, schema validation, and data quality checks.
• Identify and report data anomalies, performance bottlenecks, and defects.
• Work closely with Data Engineers, Analysts, and Business Teams to understand data requirements.
• Design and maintain test data sets for validation.
• Implement CI/CD pipelines for automated ETL testing (Jenkins, GitLab CI, etc.).
• Document test results, defects, and validation reports.
  
  

Your future duties and responsibilities

• Develop and execute ETL test cases to validate data extraction, transformation, and loading processes.
• Has experience in ETL pipeline testing in ADB environment.
• Write complex SQL queries to verify data integrity, consistency, and correctness across source and target systems.
• Automate ETL testing workflows using Python, PyTest, or other testing frameworks.
• Perform data reconciliation, schema validation, and data quality checks.
• Identify and report data anomalies, performance bottlenecks, and defects.
• Work closely with Data Engineers, Analysts, and Business Teams to understand data requirements.
• Design and maintain test data sets for validation.
• Implement CI/CD pipelines for automated ETL testing (Jenkins, GitLab CI, etc.).
• Document test results, defects, and validation reports.
  
  

Required Qualifications To Be Successful In This Role

Technical Skills Required:

• ETL Testing: Strong experience in testing Informatica, Talend, SSIS, Databricks, or similar ETL tools.
• SQL: Advanced SQL skills (joins, aggregations, subqueries, stored procedures).
• Python: Proficiency in Python for test automation (Pandas, PySpark, PyTest).
• Databases: Hands-on experience with RDBMS (Oracle, SQL Server, PostgreSQL) & NoSQL (MongoDB, Cassandra).
• Big Data Testing (Good to Have): Hadoop, Hive, Spark, Kafka.
• Testing Tools: Knowledge of Selenium, Airflow, Great Expectations, or similar frameworks.
• Version Control: Git, GitHub/GitLab.
• CI/CD: Jenkins, Azure DevOps, or similar.
  
  

Soft Skills:

• Strong analytical and problem-solving skills.
• Ability to work in Agile/Scrum environments.
• Good communication skills for cross-functional collaboration.
  
  

Preferred Qualifications:

• Experience with cloud platforms (AWS, Azure).
• Knowledge of Data Warehousing concepts (Star Schema, Snowflake Schema).
• Certification in ETL Testing, SQL, or Python is a plus.
  
  

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team—one of the largest IT and business consulting services firms in the world.

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