Voss-Andreae is a descendant of the German pastor Johann Valentin Andreae, author of one of the earliest texts of Rosicrucianism, The Chemical Wedding of Christian Rosenkreuz (1616). His full first name is Johann Julian, in honor of his ancestor. According to an interview with the artist by Jonathan Schorsch, Voss-Andreae attended a Rudolf Steiner school in Germany from grades 9 to 13.
Voss-Andreae’s work is heavily influenced by his background in science. His work includes protein sculptures, such as Angel of the West (2008), a large-scale outdoor sculpture for the Scripps Research Institute in Jupiter, Florida portraying the human antibody molecule, a sculpture for Nobel laureate Roderick MacKinnon based on the ion channel structure, and the quantum physics-inspired Quantum Man (2006).
Recent work includes an exhibition at the American Center for Physics displaying a series of sculptures inspired by concepts from quantum physics.