A software tester with four years of experience typically possesses a strong understanding of testing methodologies, techniques, and tools. They have honed their skills in test planning, execution, and reporting, ensuring the quality and reliability of software products. With their experience, they can effectively identify, report, and track software defects, collaborating closely with developers to resolve issues efficiently. Additionally, they may have expertise in automation testing, improving testing efficiency and scalability. Overall, a seasoned software tester with four years of experience contributes significantly to delivering high-quality software products to end-users.