Meet the Proton team

We are scientists, engineers, and specialists from diverse backgrounds, drawn together by a shared vision of protecting freedom and privacy online.

The Proton team
The Proton team

We are committed to creating trusted ways for everyone to be secure online and in control of their information at all times

Our values

The Proton team operates with a strong set of values

People first

Whether serving the Proton community or the broader world, we put people first. We will always put making a positive impact before profits.

Proton is independent, neutral, employee-controlled, and does not have venture capital investors.

Do what is right

We believe doing what is right is a competitive advantage. Our company culture empowers us to do what is right and to do work that we can truly be proud of. We aim to be a tech company with a conscience.

Science is our foundation

Proton was founded by scientists, and science is part of our DNA and culture. We believe in technical excellence, rigor, and peer review. Integrity, honesty, and transparency are core values.

We believe in privacy

We believe that privacy is a fundamental right and an essential part of being human. Without it, there can be no freedom. Privacy is a deeply held belief that guides all that we do.

Together it’s possible

We believe in collective strength. Our mission can only be accomplished by working together with our community. Together, we are building a better internet for future generations.

Help build the future you want to live in

Our team combines deep mathematical and technical knowledge from the world’s top research institutions with expertise in building remarkable and easy-to-use services. By joining our team, you can help build a different and better internet for now and for the future.

Meet our global team

Proton has over 400 employees working in more than 20 countries, representing over 40 nationalities. We are headquartered in Geneva, Switzerland, with offices in Zurich, Skopje, Taipei, Vilnius, and Prague.

Andy Yen
Founder & CEO

Andy has long worked to advance privacy and freedom online and has spoken at TED and the Internet Governance Forum. Previously, he was a scientist at CERN and has a PhD in physics from Harvard University and degrees in physics and economics from Caltech. Andy has lived in Switzerland, the US, and Taiwan.

Bart Butler

Bart was one of the first employees of Proton and has been CTO since 2015. He is responsible for technical vision and architecture. Previously, he worked at the Large Hadron Collider at CERN and in the private sector. He holds a BA in physics and chemistry from Dartmouth College, a PhD in physics from Stanford University and was a postdoc fellow at Harvard University.

Antonio Gambardella
Board Member

Antonio has a 25-year background in finance, principal investment, and start-up creation. As a board member, he advises the executive leadership to deliver the mission and strategy of the company. Antonio also serves as director at FONGIT, a foundation supporting innovation on behalf of the State of Geneva and the Swiss federal government.

Rosemary Leith
Board Member

Rosemary is one of the Founding Directors of the World Wide Web Foundation, a non profit founded with Tim Berners-Lee to bridge the digital divide by maximizing the impact of the Web on Health, Education and Democracy.Rosemary has a background over the past 25 years in Finance, Principal Investment, Start-up creation and Sale in Europe, UK, Canada and USA.Previously, she was the World Economic Forum Global Agenda Council Chair of the Future of Internet Security and is currently Vice Chair. She serves on the Advisory Board of a number of Universities, and as an advisor for Arts organizations.

Alisée de Tonnac
Board Member

Alisée uses her knowledge of tech trends in emerging markets to guide the Proton executive team’s strategy. She is the co-founder and co-CEO of Seedstars, a Swiss group whose mission is to impact people’s lives in emerging markets through technology and entrepreneurship. Alisée has also been named a Forbes 30 under 30 for Social Entrepreneurs and an Innovation Fellow by Wired UK, and she is a member of the Swiss Innovation Council.

Sir Tim Berners-Lee

Sir Tim is the CTO and co-founder of Inrupt and invented the web while at CERN in 1989. He co-founded and is President of the ODI. Sir Tim co-founded the Web Foundation and is the Founder and Director of the W3C. He is a Professor of Computer Science at MIT and Oxford University. In 2017, he was awarded the Turing Prize (considered the "Nobel Prize of Computing”).

Samuele Kaplun
Engineering Director

Samuele has a background in theoretical computer science. After 12 years at CERN building information systems for high-energy physics, he landed at Proton, initially to contribute to the backend team and to work on tools to improve collaboration within the Proton team. Since November 2018, he has led the Proton VPN team.

Maximilian Kossakowski
People & Culture Director

Max leads the development of culture, processes, and tools to support the growth of individuals and teams at Proton. He has supported the scale of fast-paced, high-performance tech companies, including Ubisoft and Capgemini. Max graduated from Sciences Po Paris, is a citizen of the world, and a promoter of diversity, care, and continuous learning.