A Bootstrap developer designs and develops responsive websites and web applications using the Bootstrap framework. They create user interfaces that automatically adjust to various screen sizes, making websites accessible on different devices. They utilize HTML, CSS, and JavaScript to design and manipulate website elements, ensuring a seamless user experience. They also work on improving the website’s performance, speed, and efficiency. Additionally, they fix bugs, troubleshoot issues, and update websites to enhance usability and functionality. Their role also involves collaboration with other team members, like designers and backend developers, to integrate user-facing elements with server-side logic.