Singh earned his doctorate in food science and technology from Iowa State University. He was previously an associate professor of food safety and microbiology in the Department of Poultry Science at Auburn University. Singh's research interests include pre- and post-harvest food safety, the impact of poultry and meat processing on food safety, and the development and validation of intervention strategies to control foodborne pathogens in production and processing. He also studies the prevalence and persistence of foodborne pathogens in animal production and processing, with a focus on antibiotic resistance and stress responses of pathogens in meat and poultry.