Singer earned an MA and PhD from Penn State University in American Studies, focusing on visual and material culture and ethnic and religious studies. He served as Senior Museum Writer and Communications Officer for the Philadelphia Museum of Art from 2001 to 2015—with particular specialization in writing for fundraising, marketing, and strategic-planning contexts—and a curator (pro bono) for the Philadelphia Museum of Jewish Art from 1999 to 2014. He is a regular contributor to theartblog.org and has had articles published in specialist periodicals such as The Magazine Antiques, newspapers, including the Philadelphia Inquirer and Philadelphia Tribune, and scholarly journals.