Worked on the skbkontur/retail-ui repository to deliver a new family of date input components, focusing on improving UI testing consistency and maintainability. Developed an inheritance-based architecture by introducing a BaseDateInput class, from which DatePicker and DateRangePickerInput components were derived. This approach standardized date input handling and enabled reusable testing patterns within the react-ui-testing suite. Leveraged C# development skills alongside Selenium testing and UI automation to ensure reliable and efficient validation of UI changes. The work laid a foundation for future enhancements by simplifying test maintenance and promoting consistent behavior across date-related components in the codebase.