Own the automation testing platform for mobile, web, and extension applications. Refactor and extend our existing Appium + Java setup into a scalable, maintainable, cross-platform framework. Integrate testing into CI/CD using GitHub Actions and Argo Workflows. Implement best practices for test parallelization, tagging, stability, and flake detection. Improve test observability — build dashboards, trend tracking, and HTML/video reporting for test runs. Establish standards for test code quality, folder structure, data management, and contribution guidelines. Collaborate closely with Platform, Mobile, Backend, and Web teams to embed automated checks early in development. Mentor engineers on testing techniques, CI/CD integration, and reliability practices.