What class is tester?

In software development, a tester, also known as a quality assurance (QA) tester, is responsible for evaluating and validating the functionality, performance, and reliability of software applications. Testers design test cases, execute tests, and report defects to ensure that the software meets specified requirements and quality standards before it is released. They play a crucial role in identifying issues early in the development process to enhance user experience and minimize post-release problems.