Over 80 of her short stories have appeared in various magazines, anthologies, and collections, including Apex Magazine, Nightmare Magazine, Pseudopod, Escape Pod and Short Trips: Destination Prague. One of her online humor stories, "Installing Linux on a Dead Badger", became the basis for a short humor collection of the same name published in 2007. Her 2012 horror story "Magdala Amygdala" won the Bram Stoker Award for Best Short Fiction[5] and was selected to appear in The Best Horror of the Year:Volume Five (edited by Ellen Datlow). This story later served as the basis for her 2023 novel Sister, Maiden, Monster.
Snyder served as an editor for HMS Beagle, an online bioscience publication produced by Elsevier, and briefly served as a contributing editor for Strange Horizons. Since January 2010, she has mentored students in Seton Hill University's MFA program in Writing Popular Fiction.