Design, develop, and maintain automated test frameworks for backend and UI testing. Own and drive test strategy across features or product area. Collaborate closely with engineering and product teams to influence features and advocate for testability. Integrate automated tests into CI/CD pipelines. Mentor peers and junior engineers on quality mindset and test automation best practices. Conduct exploratory testing to identify usability issues, edge cases, and potential regressions. Work across multiple parallel projects in a fast-moving, startup environment.