Katrinna focused on enhancing test automation coverage in the NPGW/npgw-ui-test repository by building automated UI tests for the Add Company flow, specifically targeting international character input. She extended the AddCompanyDialog component with new fill methods to support end-to-end testing scenarios involving both Cyrillic and Latin characters. Using Java, Selenium, and the Page Object Model, Katrinna implemented two comprehensive test cases that validated company creation with diverse character sets and complete field coverage. This work addressed the need for robust data handling across languages, reducing risk for international customers and streamlining regression testing, though it was limited to a single feature.