Senior Backend Engineer – Foundation (Impact & Open Source)

Proton Technologies is seeking a backend-focused engineer to join The Foundation Team. You will work with PHP for API related work and Rust for high-performance components, owning libraries end-to-end and shaping the migration path from older versions.

The role emphasizes architecture, collaboration with product teams, and designing scalable foundations within a large monorepo, with a strong focus on security and maintainability.

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