Decoupling frontend development from backend processes using UI-mocks infrastructure can significantly enhance developer experience by allowing frontend engineers to work independently without relying on backend availability. This method addresses common frustrations in full-stack development, where frontend progress often stalls due to backend dependencies such as development server downtime or incomplete APIs. By implementing a UI-mocks infrastructure, developers can simulate network requests and responses, enabling uninterrupted frontend development and reducing the time spent in a "blocked" state. Tools like the Mock Service Worker Library and JSON Server facilitate the creation of these mocks, providing developers with control over variables and the ability to begin feature development immediately after the design phase. This approach not only improves development velocity but also empowers frontend teams to operate autonomously, reducing dependency on backend teams and fostering a more productive and satisfying development environment.