Mugunthan N

I’m a Test Automation Engineer with hands-on experience designing and developing automation frameworks for web and API testing. I focus on scalable, maintainable solutions that improve test efficiency, reliability, and overall software quality.

In my most recent role, I automated 30+ regression test cases using Selenium, improving execution efficiency by ~35%. I also performed manual API testing with Postman and developed automated tests using RESTAssured, validating 20+ endpoints with ~90% response accuracy and data integrity.

I build structured automation using design patterns like Page Object Model (POM) and Data-Driven Testing (DDT), and I apply practices that increase coverage and stability. I leveraged GitHub Copilot to accelerate test development and debugging, improving test stability by 25% and reducing manual testing effort by ~30% in an Agile/Scrum environment.

Through projects like Amazon e-Commerce Test Automation, Sauce Demo Test Automation, and FakeStoreAPI Test Framework, I’ve delivered end-to-end and API automation using layered architectures, Excel-driven DDT (Apache POI), and reporting/logging with Extent Reports. I enjoy collaborating cross-functionally to detect defects earlier and keep releases stable.