Built to Support Student Success.

We’re data scientists, clinicians, and product thinkers who see the potential in the everyday data students generate. By unlocking patterns and guiding behavior, we help schools support students in ways that are scalable, meaningful, and proven to work.

Leadership

CEO, FOUNDER

Bettina Duehrkoop
Bettina brings over 25 years of experience in customer-centric strategy and product development, spanning both corporate and entrepreneurial environments. Before joining juli, she founded and led an award-winning advertising agency, which she successfully scaled and sold. As a parent of a college student, Bettina sees firsthand the growing importance of mental health support for young adults—an insight that fuels her commitment to building solutions that make a meaningful difference.
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Chief Medical Officer, CO-FOUNDER

Joseph Hayes, MD, PhD
Joe holds an MSc in Epidemiology from the London School of Hygiene and Tropical Medicine and a PhD in Psychiatric Epidemiology from UCL. He is a UKRI Future Leaders Fellow and serves as an Honorary Consultant in General Adult Psychiatry with the Camden and Islington NHS Foundation Trust. As a clinician, researcher, and professor, Joe is deeply committed to improving mental health outcomes through technology—and increasingly concerned about the trends he sees among student populations. His work at juli bridges evidence-based care with scalable digital solutions.
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Chief Technical Officer, CO-FOUNDER

Joris Straatman
Joris brings two decades of experience as a CTO, with a proven track record of building and scaling high-performing tech teams. He has launched multiple startups across both hardware and software, spanning B2B and B2C industries. With a BA in Psychology and an MSc in Artificial Intelligence—specializing in knowledge technology and machine learning—Joris is passionate about applying advanced technology to real-world challenges in health and education.
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Product Owner, CO-FOUNDER

Germaine Oliver, OD
Germaine is an optometrist, veteran, and product innovator with over 25 years of service in the U.S. Army, where she led clinical care and healthcare innovation initiatives. As a co-founder of juli, she brings deep expertise in designing patient-facing digital tools that make healthcare more accessible and actionable. Her approach is grounded in data and focused on real-world impact, prioritizing solutions that help people manage their health more effectively. With many young people in her life facing mental health challenges, Germaine is deeply committed to creating tools that offer early, empowering support—especially for students.

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Executive Chairwomen, FOUNDER

Bettina Hein

Bettina is a serial software entrepreneur who has successfully built technology companies in both Europe and the U.S. juli is her third software venture, driven by her passion for creating scalable solutions that improve lives. A Young Global Leader of the World Economic Forum and Massachusetts’ 2018 Immigrant Entrepreneur of the Year, she brings visionary leadership to the intersection of digital health and education. Deeply engaged with her alma mater, Bettina is acutely aware of the growing mental health challenges students face and is committed to helping campuses respond with meaningful, accessible support.