1. Develop and execute comprehensive manual test plans and test cases for various e-commerce applications, ensuring coverage of critical functionalities.

2. Conduct functional testing  to verify that features which meets specified requirements.

3. Collaborate with developers to understand application code and architecture, facilitating efficient identification and resolution of defects.

4. Ensure the compatibility of  applications with different browsers, devices, and operating systems through systematic testing.

5. Investigate, document, and prioritize defects found during testing, providing clear and detailed information for developers to address issues promptly.

6.  Collaborate with manual testers to define and implement testing strategies that combine both manual and automated approaches for comprehensive testing.

7. Implement data-driven testing strategies to validate e-commerce application functionality with various data sets, ensuring robustness across different scenarios.