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!

Let’s get coffee! Send us an email
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 & Biostatistics and Medicine, 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 & Director of Clinical 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.


Kirstin Aschbacher, PhD

Associate Professor and Data Scientist in the Division of Cardiology, University of California San Francisco

Dr. Aschbacher is passionate about “digital lifestyle medicine” – i.e., using technology to help people prevent and manage disease through healthy lifestyle change.


Abel Sierra

Senior Software Engineer

Jairo Vazquez

Senior Software Engineer

David Wen

Data Engineer

Jorge Gonzalez

Mobile Engineer

Armando Godinez

Software Engineer

Patrick Maher

Director of Operations

Vadim Ananyev

QA Engineer

Ryan Runge

Software Development Manager

Alex Cabrera

Senior Software Engineer

Dante Solorio

Mobile Engineer

Todd Parsnick

Technical Team Supervisor

Noah Peyser, PhD

Program Manager

Xochitl Butcher

Study Product Manager

Ricardo Barrera

Senior Software Engineer

John Huang

Software Engineer

Niloufar Abdollahi

Protocol Project Manager

Efren Carbajal Escamilla

Software Engineer

Jin Yu

QA Engineer

Helena Eitel

User Experience Designer

Hector Marin

Software Engineer

UCSF Cardiology

Carol Maguire, RN

Admin Dir Clinical Research

Robert Avram, MD, MSc, FRCPC

Health Science Clinical Instructor

Thalia Chavez

Clinical Research Coordinator

Emina Seremet

Senior Project Manager for the Health eHeart Study & Specialty Centers

Linnea Rohdin-Bibby

Clinical Research Coordinator

Benjamin Hobson

Research Financial Analyst

Cathy Horner

Clinical Research Coordinator

Ashley Cristal

Clinical Research Coordinator