Senior Engineering Manager

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 700+ 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!

Proton is growing fast as more people worldwide seek greater control over their online privacy. To support that growth, we're hiring a Senior Engineering Manager to lead a team on one of our upcoming products.

You'll join the engineering leadership team, helping turn technical strategy into execution and contributing to a more privacy centric internet. We're looking for an Engineering Manager with a strong mobile focus. That means a track record of building and scaling customer facing mobile applications, in B2C or B2B, for millions of users on iOS and/or Android.

Beyond technical depth, our Engineering Managers bring strong people management skills, clear communication, a business mindset, and genuine empathy for customers.

• Experience leading and growing engineering teams of 10+ engineers in a fast-paced product environment.
• Proven success managing fully remote and/or distributed engineering teams, with strong operational and communication practices.
• Demonstrated ability to partner closely with Product and Design on strategy, roadmap planning, prioritization, and execution. Comfortable challenging assumptions, driving alignment, and translating ambiguity into high-quality product delivery.
• Strong technical foundation in mobile engineering, with deep expertise in Swift, Kotlin, and/or Rust.
• Hands on technical leader with experience in mobile architecture, debugging, release management, app performance, and engineering trade offs.
• Experience building and scaling consumer mobile products with 1M+ monthly active users (MAU).
• A track record of delivering measurable impact, with clear examples of improving metrics such as user growth, retention, release cadence, product quality, reliability, engineering productivity, or team effectiveness.
• Experience operating in a high-velocity mobile development environment, with a strong focus on release predictability, engineering excellence, app quality, and disciplined execution.

• Direct exposure to features such as presence, channels, notifications, sync, low-latency messaging, or engagement loops.
• Track record improving release cadence, crash rate, ANR rate, app-store review quality, or release confidence.
• Experience hiring and developing engineering teams.
• Experience spanning both webapp/desktop and mobile (iOS and Android teams), or client plus adjacent backend ownership.
• Demonstrated ability to balance speed, quality, and high engineering standard in fast paced environment.

• Rust experience.
• Experience in collaboration, social or other real-time communication products.
• Background in privacy-first, security-focused, or mission-driven products.
• Experience with end-to-end encryption, secure communications.
• Experience in community scale or multi device products where reliability and sync are critical.
• Experience building high impact open source solutions.
• Experience in applying AI in sustainable manner in the development and test process.

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.

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.

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