Define test cases and report test results. Design, code, and execute automated GUI tests using Selenium WebDriver with C#. Develop and perform automated API tests for REST services using C# RestSharp. Conduct functional manual testing for scenarios not suitable for automation. Identify, document, and re-test defects, providing accurate reports. Support the definition and execution of test plans. Assist in user acceptance testing activities (UAT). Collaborate with SCRUM teams, participating in Kanban, daily stand-ups, and other agile methodologies.