From the position description:

The Digital Humanities Librarian will:
– Provide leadership and instruction within the Libraries on the creation and curation of digital objects for the humanities in all formats, fostering collaboration among scholars, technologists, and information specialists.
– Utilize the infrastructure of RUcore (Rutgers Community Repository) to archive, preserve, and present digital resources.
– Collaborate with campus stakeholders to integrate digital resources, methodologies, technologies, and analytical tools in the humanities disciplines.
– Partner with faculty and library subject specialists to incorporate digitized and born-digital resources into humanities research and teaching activities.
– Engage and collaborate actively as liaison to students, faculty and staff of the departments of Italian, French, and Comparative Literature, providing instruction and research consultations, and developing print and digital collections in support of teaching and research.
– Participate and teach in a proactive user education program and provide a full range of in-person and virtual reference service.

Hack Library School takes a look at the Digital Humanities Librarian as part of their Emerging Careers in Librarianship series. In a post by Amy Frazier, Lindsay Skay Whitacre, Assistant Digital Collections Librarian at Boston College, shares her experience on how she came to DH, what skills she needs to do DH as a librarian, and offers advice to those interested in getting involved.

She writes of libraries as part of a three-legged stool of DH that also includes programmers and scholars:

Digital Humanities and libraries work hand in hand. Think of it like a three legged stool:  one leg is the programmers (those creating the tools), one leg is the scholars (those using the tools) and one leg is the Library and Digital Repository (where the scholars are getting their information to use the tools.) The library is a bit of a changing landscape right now, especially as more materials are being born digital. Remember, though, digitizing something is not the same as digital humanities. You need to use that digital material as a jumping off point to create something new.