Worked on Shopify/extensions-templates and Shopify/cli, focusing on maintainability and deployment accuracy. Led a comprehensive refactor of payments extension naming and organization, introducing standardized flags and directories to streamline feature management. Implemented per-extension feature flags to enable granular control over extension visibility and behavior, and corrected extension references to ensure accurate usage. In Shopify/cli, added module context-aware deployment targeting, allowing deployments to adapt based on module context, and improved test reliability by aligning mocks and expectations. Utilized JavaScript, TypeScript, and Ruby, applying skills in API integration, configuration management, and testing to deliver robust, maintainable full stack solutions.