Keerthana Selvi

ETL Tester

ETL Tester with 4 years of professional experience in ETL Testing, Database Testing, and Data Warehouse Validation. Strong expertise in SQL, Oracle, Talend, and Unix, with hands-on experience in source-to-target validation, ETL transformation testing, data migration, and backend data verification. Skilled in validating business rules, mapping documents, Fact & Dimension tables, and SCD implementations to ensure data quality and integrity. Proven ability to work in Agile environments, execute end-to-end testing, and deliver defect-free ETL solutions within project timelines.

0
Skills
Work Experience
QA Test Engineer
Azentio Software
Oct 2020 — Apr 2023Chennai
  • Executed end-to-end testing activities including functional, regression, integration, and system testing.
  • Identified critical defects and collaborated with cross-functional teams for timely resolution.
  • Improved application quality through effective defect tracking and root cause analysis.
  • Performed database validation using SQL to ensure data accuracy and integrity.
  • Successfully supported multiple application releases in Agile environment with high-quality deliverables.
ETL Tester
Hexaware Technologies
Mar 2023 — PresentCurrentChennai
  • Spearheaded performance testing on ETL processes, enhancing execution speed by 25%, which accelerated data delivery timelines
  • Engineered automated test scripts, cutting manual testing duration by 40% and significantly boosting overall testing efficiency
  • Validated high-volume banking transaction data through end-to-end ETL testing and source-to-target reconciliation.
  • Developed optimized SQL queries for backend data validation, improving testing efficiency.
  • Identified critical ETL defects and ensured accurate implementation of business transformation rules.
  • Validated customer, account, and transaction data across Data Warehouse systems.
Skills
ETL Testing | SQL | Oracle | Talend | Unix | Data Warehouse Testing | Data Migration Testing | Source-to-Target Validation | Functional Testing | Regression Testing | JIRA | Agile | SDLC | STLC | SCD Types | Fact & Dimension Tables | Backend Testing
Education
Bachelor of Science, Information Technology
Kongu Engineering College
2012 — 20157.8 / 10