Job titles are the starting points of the silo problem.
“The reality is that you don’t need to have the title of a UX professional or consultant to make a contribution in the field of user experience. If you are passionate about making a difference for the users who will eventually use the product you are working on and have the skills you need to do the work, that’s really all you need to contribute to the product’s user experience. Simply decide for yourself that this is what you want to do, no matter what title you happen to have in your organization. In this article, I’ll give some advice to people who want to work as UX professionals. While most of these tips provide general guidance to anyone who wants to become a UX professional, some apply specifically to technical writers.”