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Senior Rust Engineer - Proton Drive

Proton·London; Genevasenior

In short

  • →Desarrollar bibliotecas fundamentales en Rust para Proton Drive.
  • →Trabajar en equipo multidisciplinario para integrar el SDK en web y móviles.
  • →Destacar por ser clave en la eliminación de duplicación de código con Rust.

Working proficiency in English is required.

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The questions they'll ask you

1. ¿Cómo manejarías la interoperabilidad entre Rust y Swift/Kotlin en un SDK multiplataforma?

2. Describe un caso donde optimizaste el rendimiento de una biblioteca en Rust.

3. ¿Cómo asegurarías la consistencia del comportamiento entre SDKs en diferentes plataformas?

🔒 +7 more questions

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💵 USD · Remote · No visa

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What they ask for

  • ✓Experiencia sólida en Rust con proyectos reales.
  • ✓Conocimiento profundo de sistemas de bajo nivel y memoria.
  • ✓Experiencia en desarrollo de SDKs o bibliotecas reutilizables.
  • ✓Capacidad para trabajar en entornos de desarrollo distribuidos.
  • ✓Habilidades de comunicación clara en inglés.
  • ✓Conocimiento de CI/CD, pruebas (e2e, unitarias) y monitoreo.

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

RustC#TypeScriptSwiftKotlinGitGitLabGitHubGitLab CIJira

Who should you write to at Proton?

Your free dossier identifies the people who'd interview you — their background, what they value, and how to reach out so you stand out before applying.

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, GitLab, GitHub, GitLab CI, Jira, Confluence). Languages we see daily is C# and TypeScript. 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, GitLab CI for running tests including e2e tests written using Playwright for both SDKs, or GitLab 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 : • Architect and develop core libraries: Lead the design and development of core Rust libraries that serve as the backbone for Proton web and mobile applications. • Cross-platform compatibility: Ensure compatibility and optim

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