Senior Android Software Engineer - London
Core
Building privacy-first consumer products (encrypted cloud storage, secure account infrastructure, private financial tools) for millions of users.
Role type
Senior Android Software Engineer (IC)
Builds
High-quality Android applications and features for Proton Drive, Payments, and Account products.
Domain
Consumer privacy technology / Mobile
Deliverable
production ML models | product features
Required skills
Kotlin, Jetpack Compose, mobile architecture design, end-to-end feature ownership, performance optimization, concurrency, multithreading, mobile memory management, scalability (caching, network, offline behavior), mentoring
Preferred skills
Privacy/security/encryption knowledge, sync systems, offline-first architectures, Rust
Technologies
Kotlin, Jetpack Compose, Rust
Responsibilities
Collaborate with product and design teams to build privacy-focused consumer products; take end-to-end ownership of features from scoping to delivery; mentor engineers and raise the technical bar; navigate ambiguity in product and technical discussions.
Seniority
Senior, hands-on IC
