As a Software Development Engineer in Test (SDET) Intern at i4i, I contributed to the development and testing of internal tools designed for handling XML-based workflows. My primary project focused on enhancing a proprietary tool used internally for processing and validating XML data structures. I implemented and executed over 1000 manual and automated test cases to ensure robustness, accuracy, and performance improvements. This experience deepened my understanding of test automation, XML parsing, and quality assurance practices within a professional software development environment. I also helped lead the changes in new test automation environment within the company, bring new tools and re-structure how we test.