Who are we?

Our team is a group of experienced clinical researchers, epidemiologists, user experience experts, programmers, data scientists and study coordinators. The Eureka Research Platform is building on the success of the innovative Health eHeart Study, which harnesses the power of online and mobile technology to gather data from study participants all over the world through internet surveys, mobile applications, and medical devices.  We have over 180K active participants and growing contributing data remotely and stored in the cloud!

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Interested in joining the team? See career opportunities

Principal Investigators

Jeffrey E. Olgin, MD

Professor of Medicine & Chief of Cardiology, University of California San Francisco

Dr. Olgin is a practicing cardiologist and cardiovascular researcher. He has been involved in leading clinical trials and clinical research for over 20 years. He is one of the Principal Investigator of the Health eHeart Study and one of the creators and Principal Investigator of the Eureka Research Platform.

Mark J. Pletcher, MD, MPH

Professor of Epidemiology and Biostatistics & Director of Informatics and Research Innovation, University of California San Francisco

Dr. Pletcher is a practicing internal medicine physician and an epidemiologist. His research focuses on prevention of cardiovascular disease, how exposure to cardiovascular risk factors like blood pressure and cholesterol during young adulthood may contribute to heart disease later in life, and how to use emerging technology to improve health.

Gregory M. Marcus, MD, MAS

Professor of Medicine & Associate Chief of Research for Cardiology, University of California San Francisco

Dr. Marcus is a practicing cardiac electrophysiologist and cardiovascular researcher. His research interests include investigating causes and optimal treatments for abnormal heart rhythms, prevention of stroke, and the influences of common exposures (such as alcohol, caffeine and tobacco exposure) on health.


Noah Peyser, PhD

Scientific Program Manager

Patrick Maher

Operations, Communications and Special Projects Manager

Helena Eitel

Senior User Experience Designer

Abel Sierra

Senior Software Engineer

Jorge Gonzalez

Mobile Engineer

Jin Yu

QA Engineer

Jairo Vazquez

Senior Software Engineer

Ryan Runge

Software Development Manager

Xochitl Butcher

Senior Eureka Product Manager

Alex Cabrera

Senior Software Engineer

Dante Solorio

Mobile Engineer

Christa Zedlovich

Freelance UI Developer

Niloufar Abdollahi

Protocol Project Manager

David Wen

Data Manager

Todd Parsnick

Tech Team Manager

Efren Carbajal Escamilla

Software Engineer

Armando Godinez

Software Engineer

Brittany Tadwilliams

Protocol Project Manager

Cathy Horner

Protocol Project Manager

Luis Ojeda

Lead Mobile Engineer

Ricardo Barrera

Senior Software Engineer

Vadim Ananyev

QA Engineer

UCSF Cardiology

Robert Avram, MD, MSc, FRCPC

Health Science Clinical Instructor

Emina Seremet

Senior Project Manager for the Health eHeart Study & Specialty Centers

Benjamin Hobson

Research Financial Analyst

Carol Maguire, RN

Cardiology Collaborator