Senior Rust Engineer - Drive

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 !

The team:

We are looking for an experienced Rust Engineer to join the Proton Drive team.

Drive Foundation is the backbone of Proton Drive. We develop the Proton Drive SDKs, the core of all of Proton Drive's client applications as well as the cornerstone of Drive into other Proton applications, businesses, and 3rd parties. We ensure that cross-client and backend initiatives are executed with consistency and correctness; we also build and maintain the core documentation for Drive and define the architectural roadmap to evolve Drive's technology, both server-side and client-side.

Tech Stack and Tools:

• We use standard tools for communication and work organization (Git, Git Lab, Git Hub, Git Lab CI, Jira, Confluence). Languages we see daily is C# and Type Script. We also need to provide bindings for Swift and Kotlin, and we plan to add Rust to avoid the need to have two SDK implementations. We use Grafana and Prometheus to instrument our SDK, Sentry to get details issues from the SDK usage, Git Lab CI for running tests including e2e tests written using Playwright for both SDKs, or Git Lab in general to work on the code base.

Purpose of the role:

As a Senior Rust Developer on our team, you will play a crucial role in designing, implementing, and maintaining components that power Proton Drive. You will work collaboratively in a cross-functional team, including backend API, web frontend, Mac, Windows, and Android/iOS mobile developers, to ensure seamless integration and optimal performance across various client applications.

What you will do :

Job requirements:

• Experience: 5+ years of professional software development experience, with a focus on the Rust programming language.
• Rust proficiency: Strong expertise in Rust language features, concurrency, and ownership model.
• Web and/or mobile development: Experience in developing libraries for both web and mobile applications.
• Collaborative skills: Proven ability to work collaboratively in a team environment and excellent communication skills.
• Problem-solving: Strong problem-solving skills and the ability to troubleshoot issues efficiently.
• Security focus: Understanding of secure coding practices and a commitment to maintaining high levels of security and privacy.
• Version control: Proficient in using version control systems, preferably Git.
• Bachelor's or Master's degree: In Computer Science, Software Engineering, or a related field.

• Mobile development background:
  Experience with iOS (Swift) or Android (Kotlin) development, particularly building native mobile SDKs or integrating Rust libraries into mobile codebases.

What we offer:

What We Offer

• Work that Matters: millions of people trust Proton with their privacy. We answer only to our users — not advertisers, not investors with conflicting agendas, not governments. The work you do here is real, and the impact is measurable. (read more about our impact here )
• Stock Options: at Proton, we all have the opportunity to be owners of the company. From day one, you have a real stake in what we're building. When Proton wins, you win.
• Technology: you'll get the right hardware and the right software you need to do your best work.
• Learning & Development: we invest in your growth because sharp people make us…