Senior Rust Engineer – Proton Drive

Senior Rust Engineer – Proton Drive Overview

Proton is seeking an experienced Senior Rust Engineer to join their Proton Drive team, a key part of Proton’s mission to build a more private and secure internet. Proton was founded in 2014 by CERN scientists with the core belief that privacy is a fundamental human right. Since then, Proton has developed the world’s largest encrypted email service, Proton Mail, and expanded its suite to include Proton VPN, Proton Drive, Proton Pass, and Proton Calendar, tools used by millions worldwide to protect their data, fight censorship, and preserve their freedom. Proton is a profitable, independent company with no venture capital control, and it hires from the top 1% of applicants. The company values speed, a flat hierarchy, and impactful work, offering a collaborative environment with a team of over 500 members across more than 50 countries.

The Team and Role

The role involves joining the Proton Drive team, focusing on the development of core libraries in Rust that underpin Proton Drive’s client applications. These libraries are central to Proton Drive SDKs, which facilitate cross-platform functionality and integration with other Proton services and third-party applications. The engineer will ensure that these libraries are compatible across platforms, secure, and optimized for performance.

Technical Environment

The team uses standard tools such as Git, GitLab, GitHub, GitLab CI, Jira, and Confluence for collaboration and project management. The tech stack includes C# and TypeScript, with plans to incorporate Rust for SDK development to streamline SDK implementations across platforms. Monitoring and issue tracking are handled via Grafana, Prometheus, and Sentry. Testing involves unit, integration, and end-to-end tests using Playwright.

Key Responsibilities

• Lead the design and development of core Rust libraries that form the backbone of Proton Drive’s applications.
• Ensure cross-platform compatibility and high performance on web browsers and mobile devices.
• Perform code reviews, optimize code, and maintain high standards of quality and security.
• Collaborate with frontend and mobile developers to integrate core libraries seamlessly.
• Implement security best practices to uphold Proton’s reputation for privacy and data protection.
• Develop testing strategies to ensure library reliability and robustness.
• Create comprehensive documentation to support other developers and future maintenance.
• Stay updated with the latest in Rust and related technologies, proposing innovative improvements.

Candidate Profile

• Minimum of five years of professional experience in software development, with a focus on Rust.
• Deep expertise in Rust language features, concurrency, and ownership models.
• Experience developing libraries for both web and mobile platforms.
• Strong teamwork and communication skills.
• Excellent problem-solving abilities and troubleshooting skills.
• Understanding of secure coding practices and commitment to privacy.
• Proficiency with version control systems, especially Git.
• Educational background in Computer Science, Software Engineering, or related fields.
• Bonus: Experience with mobile development, including iOS (Swift) or Android (Kotlin), especially in building or integrating SDKs with Rust.

What Proton Offers

• Meaningful work that impacts millions of users who trust Proton with their privacy.
• Ownership through stock options, allowing employees to share in the company’s success.
• Access to cutting-edge hardware and software tools.
• Investment in your professional growth through learning and development programs.
• Comprehensive health, retirement, and wellness benefits.
• Opportunities for face-to-face collaboration at Proton offices in Geneva, Zürich, Barcelona, London, and more.
• Daily lunch and snacks provided at office locations.
• Support for commuting costs via public transport, biking, or parking.
• Flexible working hours prioritizing outcomes over clock-in times.
• A strong commitment to diversity and inclusion, fostering an environment where all voices are valued.

Proton emphasizes an inclusive culture and encourages applicants from diverse backgrounds. If additional support or accommodations are needed during the hiring process, applicants are encouraged to communicate this to their talent partner. All applicant data is handled in accordance with Proton’s privacy policies, with options for data access, correction, or deletion.

Degree Requirement: Bachelor’s

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