Our leadership team

Ada’s sophisticated AI and vision to transform global healthcare is driven by a team of more than 200 people around the world.
Daniel Nathrath
Co-founder & Chief Executive OfficerDaniel Nathrath
Co-founder & Chief Executive OfficerDaniel Nathrath

Daniel has nearly 20 years' experience leading the charge to bring transformational technology to new industries. During his career, he has founded and led several internet startups based in Denmark, Germany, the US and the UK. After studying law as a Fulbright Scholar at the University of Houston, Daniel earned his MBA at the University of Chicago, then shifted his focus to consulting at Boston Consulting Group before embarking on his entrepreneurial journey.

Claire Novorol
Co-founder & Chief Medical OfficerDr. Claire Novorol
Co-founder & Chief Medical OfficerDr. Claire Novorol

Claire is a trained doctor, and served as a pediatrician in London before specializing in clinical genetics. With a degree in both pathology and medicine from the University of Bristol and a PhD in Neuroscience from the University of Cambridge, Claire oversees all of Ada’s medical affairs. As an industry thought leader, she gives a voice to the clinicians, patients and doctors to ensure that our product meets their needs.

Martin Hirsch
Co-founder & Chief Scientific OfficerDr. Martin Hirsch
Co-founder & Chief Scientific OfficerDr. Martin Hirsch

Martin has a Ph.D. in Neuroscience and a Diploma in Physiology. A medical researcher turned serial entrepreneur; Martin shifted from theory to innovation after publishing his work on nerve modeling in the scientific journal Nature. His first venture was a nerve modeling program that saved thousands of animals from lab testing. He developed the first version of Ada for doctors and continues to shape the way Ada learns today. Martin is a grandson of the celebrated Nobel Laureate Werner Heisenberg.

Niels Boon
Chief Financial & Operating OfficerNiels Boon
Chief Financial & Operating OfficerNiels Boon

Niels holds a Master of Finance and held advisory roles at McKinsey & Company and Sequoia, before taking financial leadership roles at Zalando, itembase, and Bonial. He oversees our finance, people & workplace, legal, global compliance & ethics, and operations departments. “It's my goal to create the ideal conditions for Ada to succeed as a company, ensuring we can sustainably achieve our mission."

Peter Siciliano
Chief Technology OfficerPeter Siciliano
Chief Technology OfficerPeter Siciliano

Peter has led from the C-suite across a variety of industries – corporate compliance, advertising, e-commerce, music technology and digital distribution – and cities, including LA, Denver, Tokyo, Hong Kong and Berlin. He leads Ada’s product strategy and delivery teams to ensure Ada products evolve with the needs of our users, clients, and global health. He uses a Fitbit to track sleep and heart rate and prioritizes a regular sleep cycle, especially when travelling across timezones.

Paul Jakimciw
Chief Product OfficerPaul Jakimciw
Chief Product OfficerPaul Jakimciw

Paul has worked in tech for over 15 years leading strategy, product and commercial teams with the likes of Skype, eBay, and Zoopla. His interest in healthtech came long before it was a popular hashtag: helping scale Europe’s largest telehealth provider, and also acting as SuperCarers' NED and CPP's healthtech advisor. Paul leads our global strategy and commercial, growth, and consumer agendas. He uses DNA and microbiome data to focus on managing health around lifestyle and personalized risks.

Chris Lossin
Chief Business Development OfficerChris Lossin
Chief Business Development OfficerChris Lossin

Chris spent his early career in Europe, including a role as Development Director at Bupa. He then worked in several Asian countries and led major development initiatives for some of the world’s largest health and financial services companies. Chris now leads Ada’s business development activities, overseeing our commercial relationships with healthcare systems and governments worldwide. “Cultivating the right partnerships will help us achieve our mission.”

Jeff Cutler
Chief Commercial Officer (Americas)Jeff Cutler
Chief Commercial Officer (Americas)Jeff Cutler

With over 25 years of experience in healthcare and digital media, Jeff leads our business in the Americas, establishing partnerships with health systems, payers, employers, and other digital health platforms. Before Ada, Jeff led the US launch of TytoCare and Vitals. “My goal is to further our mission of democratizing access to healthcare – by creating meaningful partnerships that align with our values.”

Johannes Schröder
Vice President of Product, CoreJohannes Schröder
Vice President of Product, CoreJohannes Schröder

Johannes leads Ada’s technology team and is responsible for software architecture and ensuring products are secure, scalable and deployable within clinical settings. Better known as 'Schroedi' around the office, he previously held senior roles at several startups focusing on language technologies and information retrieval. Raised in Lüben, south of Berlin, Johannes studied computational linguistics at the University of Potsdam.

Marvin Rottenberg
Vice President of MarketingMarvin Rottenberg
Vice President of MarketingMarvin Rottenberg

Before Ada, Marvin worked at Google and specialized in performance & brand marketing where he consulted with multinational corporations on digital growth strategies. He oversees our marketing department, all global marketing activities, and is responsible for user acquisition, branding, and growth. “My priority is to help Ada reach millions worldwide and inspire them to manage their personal health.”

Colin Clark
Vice President of Data & AnalyticsColin Clark
Vice President of Data & AnalyticsColin Clark

Colin has had an extensive career in capital markets and e-commerce – working with NYSE, Fidelity, E*Trade, Bank of America/Merrill Lynch, Goldman Sachs, Microsoft, Adobe, Samsung, HTC, and Lenovo. He founded a startup in 1998 that focused on helping doctors coordinate surgeries more effectively. “I lead Ada’s data strategy and analytics to provide our users with the best experience possible.”

Ewelina Türk
Director of Medical ContentEwelina Türk
Director of Medical ContentEwelina Türk

Ewelina has a key role in leading Ada’s medical content team and managing the medical knowledge architecture. Born in Konin, Poland, and raised in Guben, Germany, Ewe went on to study medicine at the Charité - Universitätsmedizin in Berlin. Her particular area of clinical interest is pediatrics, especially the fields of emergency and preventative care. Alongside her work in the medical content team, Ewelina is currently completing a doctorate in the field of pediatric rheumatology.

Henry Hoffmann
Director of ResearchHenry Hoffmann
Director of ResearchHenry Hoffmann

Henry leads Ada’s research team. The native Berliner spearheads algorithm development, modeling proprietary languages and developing novel approaches to knowledge representation. Henry studied computer engineering at the Technical University of Berlin and has since developed several artificial intelligence technologies.

Larissa Naue
Director of People & WorkplaceLarissa Naue
Director of People & WorkplaceLarissa Naue

Larissa has dedicated her career and studies to people management for a decade. She has held senior positions at MeteoGroup and Roland Berger, and completed a Masters in Human Resource Studies and a Bachelor Degree in European Business. Larissa is directing our team of driven healthtech professionals and fast-growing workplaces across the globe. She makes a point of listening to her body and getting an early night if she starts to feel unwell, even if it means changing plans.

Bethany Dufresne
Head of CommunicationsBethany Dufresne
Head of CommunicationsBethany Dufresne

Bethany has a diverse communications background across agency and in-house. Prior to Ada, she led corporate communications for a financial technology startup in San Francisco and managed integrated communications programs for global tech clients at Edelman. Bethany received a Masters in Global Affairs from New York University. At Ada, Bethany oversees the company’s communications and PR initiatives.

Hila Azadzoy
Managing Director, Global Health InitiativeHila Azadzoy
Managing Director, Global Health InitiativeHila Azadzoy

Hila is dedicated to using technology for social good, leading our Global Health Initiative to improve access to healthcare in resource-limited countries. Before Ada, Hila was a founding member and Head of Academics at Kiron Open Higher Education, a startup removing barriers to education for refugees. She is a Digital Female Leader Award recipient, an MIT Solve Member, and a talented public speaker (TEDx, Clinton Global Initiative, UNESCO NGO Forum, and UBS Social Innovators).