Clement Blanco developed foundational backend scaffolding, an API layer, and a frontend UI skeleton for the pestphp/pest-plugin-browser repository, enabling scalable browser-based test execution and reporting. He focused on performance improvements, CI/CD automation, and test infrastructure stabilization using PHP, JavaScript, and GitHub Actions, which improved reliability and accelerated feature delivery. Clement also automated playground setup and refined configuration management, supporting both local and CI environments. In the matomo-org/device-detector repository, he implemented device detection for the iPhone 17 series, adding YAML-based rules and test fixtures to enhance analytics accuracy. His work demonstrated depth in automation, testing, and cross-platform development.