- Performed manual testing of responsive websites and web applications across multiple browsers and screen sizes. - Created and maintained detailed test cases, bug reports, and test documentation. - Investigated issues using browser DevTools, console logs. - Worked with integrations such as Google Analytics, Facebook Pixel, Hotjar, and CRM connectors. - Validated event tracking, UTM parameters, and correct analytics triggering. - Collaborated closely with developers, product managers, and designers in an Agile team. - Tools used: Jira, DevTools, GitHub, Postgress, analytics tools (GA, FB Pixel), internal logging systems.