I work for a national library and have expertise in usability studies including tests, wireframe and mockup design, heuristic reviews, needs assessment, contextual inquiry, and user persona creation. I also create and design digital exhibits. This work is documented in my book Creating Digital Exhibits for Cultural Institutions: A Guide, published by Routledge.
Digital Library Work
Librarians are not just reference workers or catalogers.
Some of us work wholly in the digital realm, trying to make things that are usable and beautiful.