Marieka manages library preservation services for physical collections, which includes the Book Repair Unit (repair of general collection books), Conservation Unit (conservation treatment of rare and special collection materials), Bindery Prep (commercial binding), and the environmental monitoring program. She develops standards, policies, procedures, selection, and work flow for these units. She hires, trains, and supervises librarians and support staff. She also contributes to the conservation field through service, research, presentations, and teaching, especially in the area of papyrus collections. 

Marieka works closely with library staff to select items for conservation treatment and commercial binding, and organizes conservation support for exhibits, loans, and digitization. Other duties include providing disaster recovery services for library materials and engaging in outreach to the campus, local, and regional cultural heritage community. Marieka is readily available to answer preservation-related questions from library staff, students, and the public.

Marieka received a MA and certificate of advanced study in Art Conservation from SUNY Buffalo State and a MLIS from San Jose State University. She started working in the field of library preservation in 1998, during her senior year as a studio art and psychology major at Brandeis University.