Proton is seeking a Backend Engineer for the Foundation Team to design and build shared libraries, APIs, and core services using PHP and Rust. You will own components end to end within Proton's monorepo, ensuring performance, memory safety, and clean API design.
You'll collaborate with product teams, write RFCs, improve tooling, and help scale systems used by millions worldwide. Experience with Docker, security-minded architecture, and cross- team collaboration is essential; Barcelona office is
📌 Senior Backend Engineer — Architect Shared Frameworks for Privacy (Barcelona)
🏢 Doist
📍 Barcelona
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