Proton Technologies AG in Barcelona is seeking a Senior Android Software Engineer to build privacy-first Android apps using Kotlin, Jetpack Compose, and a shared Rust core. You’ll contribute to scalable, high-quality mobile experiences used by millions. You will own features end-to-end—from scoping and design to delivery and iteration—collaborating across product, design and engineering. A passion for performance, security, and delightful user experiences is essential, as is comfort navigating
📌 Senior android engineer - privacy-first, flexible hours (Madrid)
🏢 Proton
📍 Madrid