V. Krishna Kumar has 5 years of experience in software testing with expertise in manual testing, test case design, defect tracking, and testing methodologies like black box testing. He has worked as a Software Test Engineer for Quadrant Four Software Solution Pvt Ltd and Blueshift Information Systems Pvt Ltd, where he tested applications in various domains including banking, payments, and online education. He is proficient with testing tools like Selenium, QTP and has experience with defect tracking tools like Mantis and TFS.