About
Detail-oriented and results-driven ETL Tester with over 5+ years of experience in data warehousing, ETL testing, and SQL-based data validation. Proven expertise in validating complex data transformations, ensuring data integrity, and performing end-to-end source-to-target validation across multiple systems. Strong hands-on experience in writing and optimizing SQL queries, analyzing large datasets, and identifying data discrepancies. Worked extensively with relational databases such as Oracle, SQL Server, and Snowflake, along with ETL tools like Informatica and SSIS, ensuring accurate data flow for reporting and analytics. Experienced in Agile (Scrum) environments with active involvement in requirement analysis, test planning, and defect tracking using JIRA. Possess working knowledge of Python, PyTest, and PySpark for data validation and testing support. Known for strong analytical thinking, problem-solving abilities, and attention to detail, with a consistent track record of delivering high-quality results in fast-paced environments.
Skills & Expertise (28)
Work Experience
Senior Software Engineer (ETL QA)
Entrust Software & IT Services
Aug 2020 - Present
Developed test cases by analyzing mapping documents from source and target environments. Created ETL test scripts based on technical specifications and source-to-target mappings. Designed and executed test scripts, including data quality validation such as row count checks and sample data verification. Verified column mapping between source and target environments. Demonstrated strong understanding of software testing lifecycle processes. Created documentation for bug logging, prioritizing, tracking, and reporting.
ETL Tester (QA)
UniCredit (Italy)
Present - Present
Analyzed projects and tested source data, staging data, and target data. Wrote SQL queries to execute test cases using subqueries, joins, group functions, and analytical functions. Tested record counts between source and target environments. Documented and prepared test reports, defect lists, and test results. Analyze application data using SQL to identify modifications in ETL processes. Created SQL queries and stored procedures for quality assurance and analysis. Communicated identified defects in the testing environment to developers. Attended Scrum meetings and provided updates on day-to-day activities.
ETL Tester (QA)
CareSource (US)
Present - Present
Analyzed projects and tested source data, staging data, and target data. Wrote SQL queries to execute test cases using subqueries, joins, group functions, and analytical functions. Tested record counts between source and target environments. Documented and prepared test reports, defect lists, and test results. Analyze application data using SQL to identify modifications in ETL processes. Created SQL queries and stored procedures for quality assurance and analysis. Communicated identified defects in the testing environment to developers. Attended Scrum meetings and provided updates on day-to-day activities.
Education
Bachelor of Science in Software Systems - Kongu Engineering College
2015 - 2018 · Afghanistan
Certifications
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Skills (28)
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