A user experience (UX) designer helps design websites and software. Their job is to make the experience as easy and enjoyable as possible for the end-user. To do this, they often have to go through multiple iterations of a single interface and gather information on user behavior.
They then use the gathered data to create a site's architecture, layout, and overall design. But deploying a website is only one phase of a UX designer's job. They also have to monitor user behavior, assess the interface's usability, and make modifications as needed.
You don't need a degree to become a UX designer. Attending a UX Bootcamp and other relevant training programs is enough to get you in the door. You will, however, need knowledge and experience. Taking internships and minor roles is a great place to start.