Perhaps there is more to this position than stated in the description, but this position does not have the librarian actually managing electronic GIS data, let alone actual GIS software. I think they are really looking for an amateur archivist, or a bookkeeper (map keeper) than an actual GIS Librarian.
Here is the description:
GIS (Geographic Information Systems) Librarian to file and maintain hardcopy segment folders, support materials, technical publications, photography, maps, etc. The library is composed of a combination of filing systems to include high-density files, lateral file cabinets, vertical file cabinets, flat file cabinets, storage cabinets etc. to safely store materials in an organized and systematic manner in support of the National Resource Inventory program.Note: Please do not confuse this job description with the functions of professional GIS and Map Librarians.