A Chrome Extension Developer is a software developer who specializes in creating browser extensions for Google Chrome. These extensions are small software programs designed to enhance the functionality of the Chrome browser by adding new features or modifying existing behavior. Chrome extension developers are proficient in JavaScript, HTML, and CSS, and often work with the Chrome Extensions API to interact with browser components, such as tabs, bookmarks, or the web page itself.

Their work includes tasks such as designing user interfaces for the extension, integrating with external APIs, handling data storage, and ensuring that the extension performs efficiently. Chrome Extension developers focus on creating tools that improve productivity, privacy, security, or user experience, and they ensure that extensions are optimized for seamless use across different websites and Chrome versions.