A CSS Bootstrap Developer designs and implements responsive web page layouts using Bootstrap, a popular CSS framework. They utilize Bootstrap's pre-defined classes and components to ensure consistent design across various devices and browsers. Their tasks include creating user-friendly navigation elements, forms and buttons, customizing themes, optimizing load times, and ensuring accessibility. They also collaborate with backend developers and UX designers to integrate user interface components with server-side logic, and to enhance user experience. They're also responsible for debugging, maintaining the code, and ensuring its compatibility with SEO standards. Their ultimate goal is to create functional, attractive, and seamless web applications.