QA software testers need a mix of technical, analytical, and communication skills to ensure software quality and reliability. Core technical skills include understanding software testing concepts, test case design, defect tracking, and basic knowledge of tools like Selenium, JIRA, and test management platforms. Analytical thinking is essential for identifying edge cases and risk areas. Knowledge of SDLC and Agile methodologies is important for working in modern development teams. Basic programming or scripting knowledge is helpful but not always mandatory. Strong attention to detail, problem solving ability, documentation skills, and clear communication are critical, as testers regularly collaborate with developers, product managers, and business stakeholders during testing cycles.