Kanagaraj V S is a Lead Test Engineer with 9+ years of experience in software quality assurance, test automation, and QA leadership. He specializes in functional, regression, API, web, and mobile testing using Playwright, Selenium, Appium, and Postman. His expertise includes test planning, requirement analysis, defect management, and end-to-end validation of complex U.S. tax e-filing applications. He focuses on improving software quality through effective test strategies, reusable automation frameworks, and early defect prevention.