Data / ETL Tester

Key Responsibilities

• Execute test cases to validate ETL processes, data pipelines, and data warehouse solutions.
• Perform source-to-target data validation to ensure data is accurately extracted, transformed, and loaded.
• Verify data quality through completeness, accuracy, consistency, and integrity checks.
• Execute reconciliation testing to compare source and target datasets and identify discrepancies.
• Assist in preparing test plans, test cases, test data, and test execution reports for data validation activities.
• Log, track, and verify defects using defect management tools and support developers in defect resolution.
• Validate bug fixes and perform regression testing for ETL processes and data workflows.
• Collaborate with ETL Developers, Data Engineers, Business Analysts, and QA teams to understand business rules and data requirements.
• Assist in documenting test results, data validation procedures, and quality metrics.
• Participate in Agile ceremonies, including sprint planning, daily stand-ups, sprint reviews, and retrospectives.
• Follow QA standards, data governance policies, and testing best practices.
• Escalate testing issues, data inconsistencies, and risks to senior QA team members when necessary.

Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, Information Systems, Data Analytics, Computer Engineering, or a related field.
• 0–2 years of experience in Software Testing, Data Testing, ETL Testing, or Database Support.
• Basic understanding of Software Development Life Cycle (SDLC) and Software Testing Life Cycle (STLC).
• Basic knowledge of ETL concepts, data warehousing, and relational databases.
• Familiarity with SQL for querying and validating data.
• Understanding of data validation, reconciliation, and quality assurance concepts.
• Familiarity with defect tracking and test management tools such as Jira, Azure DevOps, or TestRail.
• Strong analytical, problem-solving, and attention-to-detail skills.
• Good written and verbal communication skills.
• Ability to work effectively under close guidance and daily supervision.

Preferred Certifications

• ISTQB Certified Tester – Foundation Level
• AWS Certified Cloud Practitioner
• Microsoft Azure Fundamentals (AZ-900)
• Scrum Foundations
• Microsoft Azure Data Fundamentals (DP-900) (Preferred)

Technical Skills

• ETL Testing Fundamentals
• Source-to-Target Data Validation
• Data Quality & Reconciliation Testing
• SQL & Relational Databases
• Data Warehouse Fundamentals
• Test Case Design & Execution
• Defect Management (Jira, Azure DevOps, TestRail)
• SDLC & STLC
• Agile & Scrum Methodologies
• Microsoft Excel for Data Analysis
• Technical Documentation
• Basic Cloud Data Fundamentals (AWS / Azure)