John Rattray, PhD
Senior Wearable Specialist, JuneBrain
A designer, developer, and innovator in the biomedical space, with a particular focus on wearable technology.
John graduated from the University of Maryland, Baltimore County as a Meyerhoff Scholar in 2015 with a B.S. in Computer Engineering, then received the GEM Fellowship and completed both his M.S.E. and Ph.D. in Electrical and Computer Engineering at Johns Hopkins University in 2017 and 2024.
During his doctoral studies he founded and served for two years as CEO of Sparkwear Inc., a company built around his patented wearable technology designed to increase safe interpersonal interaction and engagement in physical spaces. His dissertation research centered on developing a novel multisensor wearable system capable of noninvasively collecting a suite of biosignals and biomarkers and pairing them with AI models for continuous blood pressure estimation. That work led to a pending patent, multiple publications, and is detailed extensively in his thesis, Continuous Health Monitoring with Distributed Networked Wearables.
John currently works at JuneBrain Inc. as their Senior Wearable Specialist, where he designs a next-generation wearable retinal scanner used to measure and monitor retinal tissue for the assessment of neurological diseases. His work integrates advanced sensing, embedded systems, and biomedical engineering to support early detection and continuous monitoring of neurodegenerative conditions.
- UMBC B.S. Computer Engineering Meyerhoff Scholar
- Johns Hopkins M.S.E. and Ph.D., Electrical & Computer Engineering GEM Fellow
- Sparkwear Inc. Founder and former CEO
- JuneBrain Senior Wearable Specialist