Conducted comprehensive manual testing on various software applications, including web and mobile platforms, to ensure their functionality, usability, and compatibility; Developed and executed test cases and test scenarios based on project requirements and design documents (web/mobile).; Identified, documented, and tracked defects using bug tracking tools, such as Jira, while providing clear and concise descriptions to aid developers in the resolution process; Conducted regression and integration testing to verify bug fixes and ensure the stability of software applications after updates or modifications; Assisted in the implementation and improvement of QA processes, helping to enhance overall software quality and team efficiency; Conducted exploratory testing to identify potential issues and report them for further analysis; Gained experience in using testing tools and understanding software development lifecycle methodologies.