Data Scientist

Job description

Our company

At Proton, we envision an internet where privacy is the default, and we’re building ways to help all people secure their digital lives and take control of their data.

ProtonMail was founded in 2014 by a group of scientists who met at the European Organization for Nuclear Research (CERN). And since its inception, the company has grown at a fast pace and today has over 40 million users. Our principal product, ProtonMail, is the world’s largest secure email service. Our second product, ProtonVPN, is one of the world’s most popular VPN services. Our vision is to build an internet platform for the protection of digital rights, for which we are also developing additional products, including ProtonCalendar, ProtonDrive, and more to come.

Proton users include leaders of the Hong Kong protest movement, New York Times journalists, some of the world’s largest corporations, and millions of ordinary citizens from over 180 countries. Our team is diverse and dynamic, representing over 30 different nationalities, with offices in Geneva, Zurich, Prague, Vilnius, Skopje, and Taipei.


Our Proton Data Team

Over the past few years Proton Technologies has established itself as a global leader in online security. Unlike most companies in the tech space, at Proton we value customer privacy above all, limiting the data collection to anonymised operational data. This makes the Data Team’s job a very challenging one! The Proton Data Team is in charge of all things data in the company: from product analytics to finance metrics, including topics such as product or infrastructure performance. We leverage our on-premise custom data platform to provide support for data-driven decision making throughout the company. Come join us and help make a better internet!


About the position

We are looking for Data Scientists at various levels to help us grow our data platform in Geneva or remotely from Barcelona. You will collaborate with multiple teams throughout the company to use data, with a focus on server-side analytics, to provide analyses and visualizations that will inform data-driven decisions and contribute to drive product development and marketing strategies. You will also make significant contributions to our internal analysis frameworks and help build new analytics applications to fulfill the needs of the company.


Your responsibilities

  • Assemble, clean, and manage large, complex datasets
  • Use data to produce dashboards and reports for a wide array of stakeholders
  • Contribute in the internal analysis frameworks and take ownership of some of these tools
  • Create new applications to provide more advanced analytics
  • Contribute to ongoing data cataloging efforts

Job requirements

  • Experience working with and analyzing large, complex datasets
  • Advanced knowledge of Python, experience designing or contributing to large libraries and code bases
  • Masters of Science or higher degree in a quantitative discipline: statistics, mathematics, physics, engineering, computer science, etc.
  • Good knowledge of SQL
  • Strong analytical skills
  • Basic understanding of business intelligence, marketing KPIs, and web analytics
  • Knowledge of Scala considered a plus


Why you should join Proton

  • We work on interesting, challenging problems every day. There is never a dull moment
  • Our startup culture means everyone’s opinion matters. You can have a significant impact
  • Our rapid growth means there are many opportunities for advancement
  • The chance to do something meaningful. Proton products protect dissidents, journalists, and activists. Our work saves lives
  • Be part of something bigger. Millions of people and businesses around the world have embraced our idea of an Internet where privacy and security are the default. Join the privacy revolution that is changing the world




ProtonMail uses the Recruitee recruitment platform for a more efficient hiring process and better candidate experience. Your data will be kept confidential and not shared with any third parties. Keep in mind that you will receive emails from careers@protonmail.recruitee.com email or other addresses on the protonmail.recruitee.com domain.