Currently, he is a professor in the department of photography at Parsons School of Design in New York. His work has appeared in numerous galleries, including The Sotheby Gallery, Multimedia Gallery, Astra Gallery and, most recently, Mazeo Gallery in New York. Grimaldi has received a Ford Foundation grant for his work in Conceptual Performance photography and has continued in this genre. He is working on a project entitled Truth and Color, which entails the capture of color and light without the use of digital manipulation. This work will appear in book form in 2016. His saturated, beautifully lit images capture the awe-inspiring spirit of an otherwise drab urban scene.