A Chrome Extension developer creates and maintains browser-based applications for Google Chrome. They design user-friendly interfaces, write and test code, debug issues, and ensure compatibility with different versions of Chrome. They also implement features to enhance user experience, such as customization options, shortcuts, and notifications. Their work involves understanding user needs, creating solutions, and often collaborating with other developers or designers. They must adhere to Chrome's extension development standards and policies, ensuring user data security. After development, they release updates, fix bugs, and potentially handle user feedback to improve the extension.