Shannon is the Director of Libraries for the Medical University of South Carolina in Charleston and also the Director for Region 2 of the Network of the National Library of Medicine, headquartered at MUSC.

Before she arrived at MUSC, Shannon worked as the Associate Director for Research and Education for Tompkins-McCaw Library for the Health Sciences at Virginia Commonwealth University in Richmond. Shannon focuses her research on staff recruitment and retention, diversity, equity, inclusion and belonging in libraries, and leadership in academic health sciences libraries.

In 2018, Shannon co-founded the MLA Reads Virtual Book Discussion Club to provide a forum where participants can learn, discuss, and process the implications of a variety of DEI topics in their work as information professionals and in their personal lives. Shannon is the co-editor of Diversity and Inclusion in Libraries: A Call to Action and Strategies for Success and the forthcoming volume, Cultural Humility in Libraries. Her educational background includes an Ed.D. in Educational Leadership from Charleston Southern University, an M.Ed. in Adult Learning with a concentration in Human Resources Development from Virginia Commonwealth University, and a Master of Library Science from North Carolina Central University.