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. Meet some of them here.
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 and Operating OfficerNiels Boon
Chief Financial and Operating OfficerNiels Boon

After graduating with a Master of Finance from the University of Amsterdam, Niels learned the tricks of the trade through advisory roles at McKinsey & Company and Sequoia, as well as financial leadership roles at multinational technology companies Zalando, itembase, and Bonial. He is responsible for our global financial strategy, people and workplace, legal, and compliance departments. A fast talker and runner, you can try to catch him sprinting around the Spree on the weekends for fitness.

Peter Siciliano
Chief Product OfficerPeter Siciliano
Chief Product 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 Business OfficerPaul Jakimciw
Chief Business 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.

Jeff Cutler
Chief Commercial Officer (US)Jeff Cutler
Chief Commercial Officer (US)Jeff Cutler

Jeff's 25 years' experience in healthcare and digital media include leading the US launch of TytoCare – the first remote health examination platform – and building and leading Vitals, one of the US' top patient engagement and transparency platforms. At Ada, Jeff leads our US business, including sales and business development focused on establishing partnerships with health systems, payers, employers and other digital health platforms.

Johannes Schröder
Chief Technology OfficerJohannes Schröder
Chief Technology OfficerJohannes 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, the Ada CTO 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

Marvin oversees our marketing department, all global marketing activities, and is responsible for user acquisition, branding and growth. Prior to joining Ada, he worked at Google and specialized in performance & brand marketing where he consulted with startups and multinational corporations on digital growth strategies. He earned his Masters of Science degree in Political Economy at the London School of Economics for his research on China’s and India’s evolving e-commerce landscapes.

Ewelina Türk
Head of Medical ContentEwelina Türk
Head 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
Head of ResearchHenry Hoffmann
Head 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.

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).

Larissa Naue
Director of People and WorkplaceLarissa Naue
Director of People and 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.