A small group of engineers and researchers embedded inside UVA's Link Lab. We work directly with PIs and study coordinators — from idea to production.
Laura Barnes is a professor in the Department of Systems and Information Engineering. She is the Associate Director of Link Lab and directs the Sensing Systems for Health Lab which focuses on designing impactful, technology-enabled solutions for improving health and well-being. She received her Ph.D. in Computer Science from the University of South Florida. Laura's work has been funded by the National Institutes of Health, National Institute of Aerospace, US Army, and private foundations.
Mark is an engineer and researcher at the University of Virginia, where he leads Digital Trails and builds infrastructure to power AI research on modern consumer devices like smartphones, smartwatches, and wearable health trackers. Mark completed his PhD in Systems Engineering at UVA, specializing in online and reinforcement learning for personalized digital mental health interventions.
Ibrahim is a software developer working across mobile, web, and Azure to maintain and build Digital Trails — a research platform that collects data from health trackers, surveys, and more. Ibrahim has over a decade of experience developing cross-platform mobile apps.
Russ has been with UVA since 2017 and has worked across Grounds in different capacities with multiple departments, institutions, and schools. Most recently, he has been managing a UVA-funded Grand Challenge at the Link Lab in the School of Engineering and Applied Science focused on expanding and improving digital technology through smart infrastructure and helping develop proposals for grant funding toward this end. With over 8 years of project management experience, Russ supports the team with communication and organization skills, institutional knowledge, and the drive to succeed in any endeavor. He lives in Staunton, VA with his wife, two children, and the family dog, Barley.
Postdoctoral Fellow in the S²He Lab. Research at the intersection of mobile / wearable sensing and machine learning for health applications.
Works in the S²He Lab on on-device sensing systems for understanding and detecting social interaction, and on context-aware micro-interventions for social anxiety. Has built smartwatch systems used across UVA Psychology, Nursing, and Medicine.
Sneha is a Computer Science student at UVA Engineering. With the Digital Trails team, she works on the systems that keep research apps and participant data secure — focused on privacy, cloud architecture, and the responsible use of AI in study tools.
Research assistant at the UVA Link Lab. His work focuses on supporting the development of research tools that make it easier for the team to configure, review, and maintain app-based study infrastructure. He has worked on improving researcher-facing interfaces and exploring AI-assisted workflows for code review and project development.
Master's student in Systems Engineering at UVA, designing and prototyping the Digital Trails site.
Digital Trails is a small group of engineers and researchers, not a faculty lab. Our role is to make consumer-device research practical for PIs across UVA — from idea-stage consultations to production-quality apps, cloud infrastructure, and long-term study support. We sit alongside PIs and study coordinators rather than running independent research lines.
Most engagements start with a 30-minute consultation. From there we either work on a per-project basis (paid through hours of developer time and a monthly infrastructure fee) or as part of a award collaboration.
Drop us a line and we'll schedule a free consultation.