Ryu is the co-founder and Chief Technology Officer of Rebus Biosystems.  During his time at MIT, he was one of the original developers of  the company’s core technology, Synthetic Aperture Optics (SAO). Josh co-founded Rebus Biosystems in 2006 and served as the company’s Chief Executive Officer from its founding through 2020 when he took on his current role. Josh earned his PhD from the Harvard-MIT Division of Health Sciences and Technology.