As a remote manual tester, your duties are to test software for bugs, user difficulties, or other technical issues. Typically, your responsibilities are to follow a specific test plan or guidance plan from a QA tester or other software engineer to ensure that the different features of a new version of an application or program work according to specifications. Manual testers are needed to ensure there are no issues before they have launched the software. Since you work from home, you need to make sure you are in close communication with the QA department to report any findings.