Jennifer Grünwald began working at Marvel Entertainment's Publishing Division in 2002. She is credited for editing several of Marvel's titles and Official Handbooks.
At the New York Comic Con in 2008 she participated in the "Women in Comics" panel. At the Emerald City Comic Con in Seattle, Washington, she moderated the Mondo Marvel panel.
Writer Brian Michael Bendis named the vampire in Ultimate Spider-Man issues 95 and 96 after her.