
Join Proton and build a better internet where privacy is the default
Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right Since then, we’ve built the world’s largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar—tools used by millions globally to protect their freedom, fight censorship, and keep their data safe. In some situations, Proton has literally helped save lives!
We are profitable, independent (no VC control), and selectively hire from the top ~1% of applicants. Our 500+ team members across 50+ countries come from leading organizations and elite academic backgrounds. We move fast, keep hierarchy light, and prioritize impact over optics. If you want to do meaningful work with exceptionally high-caliber people, this is it. Join us and do work you can truly be proud of. Check our open-source projects here!
Impact & Team
Join the team working on the Mail & Calendar ecosystem alongside 50 Engineers
What you will do:
We are looking for a Senior Product Manager to lead the next stage in the evolution of some of our products (Proton Mail, Calendar). Product at Proton sits at the intersection of Engineering, Growth, Data and Design. Your responsibility will be to grow user engagement and retention by creating remarkable user experiences for our community. You are versatile in product-led growth, at the heart of our freemium model.
What we are looking for:
We need you to have:
Even if you don’t meet all the requirements listed above, but feel you could still be a great fit, please still apply.
What We Offer
Our Commitment to Diversity and Inclusion
At Proton, we believe diversity drives innovation and strengthens our mission to provide privacy as a default for all. We are committed to fostering an inclusive environment where all individuals, regardless of race, ethnicity, gender, age, sexual orientation, physical ability, or socio-economic background, feel valued and empowered. We strive to create equal opportunities, promote open dialogue, and support continuous learning to ensure every voice is heard and respected.
If you need any extra support or reasonable adjustments during the hiring process, please let your talent partner know.
Candidate Privacy Notice
When you apply for a position, refer a candidate, or are considered for a role at Proton Technologies AG (Proton, we, us, or our), your information is stored in Greenhouse, in accordance with their Service Privacy Policy. This information is used to evaluate your suitability for the posted position. We also retain this information for consideration for future roles that you may apply for or that we believe may align with your background and skills.
If we no longer have a legitimate business need to process your information, we will either delete or anonymize it. Should you have any inquiries about how we use or manage your information, or if you wish to access, correct, or delete your data, please contact our privacy team at careers@proton.ch.
Proton does not accept unsolicited resumes from any sources other than directly from candidates. We will not pay a fee for any placement resulting from an unsolicited offer, even if the candidate is subsequently hired by Proton.
To learn more about our privacy policy, please visit our privacy policy page

A better internet starts with privacy.
At Proton, we believe that privacy is a human right, the foundation of a free and open society.
That’s why we’re building an ecosystem of privacy-first, open-source tools that put people (not profits) first.
Created by scientists from CERN and MIT, governed by the Proton Foundation (a Swiss non-profit organization) and powered by a global community of supporters, Proton is independent, community-funded, and 100% subscription-based, not driven by ads or data mining.
Our privacy-by-design ecosystem includes:
✉️ Proton Mail: the world’s most private email service, free of ads and trackers
🌐 Proton VPN: a fast, secure VPN to browse freely and protect your identity online
🗓️ Proton Calendar: an encrypted calendar that keeps your schedule private
🗂️ Proton Drive: encrypted cloud storage with secure file sharing and Proton Docs for private document editing
🔑 Proton Pass: a secure password manager with a built in 2FA authenticator for logins, hide-my-email aliases, credit cards, notes, and encrypted files.
🔒 Proton Authenticator: a free, open-source 2FA app that keeps your accounts safe
🤖 Lumo: your privacy-respecting AI assistant, powered by Proton’s secure ecosystem
Trusted by over 100 million people worldwide, from journalists and activists to global NGOs, academics, and creatives, Proton is the trusted alternative to Big Tech.
Headquartered in Switzerland, with offices in Geneva, Zurich, Skopje, Taipei, Vilnius, Barcelona, Paris, and Prague, Proton is home to a growing team of 600+ people across 20+ countries, united by a single mission:
To make privacy the default for everyone. 🔐