Senior Android Software Engineer - London

Requirements

• You have extensive experience building and shipping high-quality Android applications using Kotlin
• You have strong experience with Jetpack Compose and modern Android development practices
• You care deeply about product quality, usability, and delivering exceptional user experiences
• You have experience taking end-to-end ownership of features, from scoping and technical design through to delivery and iteration
• You have strong experience building maintainable, scalable, and testable mobile architectures
• You are comfortable working across large codebases and collaborating across multiple teams
• You have experience mentoring engineers and raising the technical bar within a team
• You have a strong understanding of performance, concurrency, multithreading, and mobile memory management
• You understand mobile scalability considerations, including caching, network usage, responsiveness, and offline behaviour
• You are comfortable navigating ambiguity and contributing to product and technical discussions

Nice to Haves

• Experience with privacy, security, encryption, sync systems, or offline-first architectures is a strong plus
• Rust experience is a plus, but not required, as we continue moving towards a platform-independent Rust logical core that communicates with our Android applications through generic interfaces

What You'll Be Doing

• Based in our London office, you’ll join one of several high-impact product teams across Proton Drive, Payments and Account, helping build privacy-first products used by millions
• Collaborate closely with product, design, and engineers to build and ship high-quality Android experiences
• Work on technically ambitious products with real-world impact
• Take end-to-end ownership of your work and help define what “great” looks like for privacy-focused consumer products at scale

Perks and Benefits

• Work that Matters: millions of people trust Proton with their privacy
• Stock Options: at Proton, we all have the opportunity to be owners of the company
• Technology: you'll get the right hardware and software you need to do your best work
• Learning & Development: we invest in your growth because sharp people make us better
• Employee Benefits: strong health coverage, solid retirement options, generous leave, and wellness support
• In-Person Collaboration: collaborate face-to-face with passionate, smart, and purposeful people
• Food: lunch and snacks provided daily in our offices
• Transport: public transport, bike allowances, or parking covered
• Flexible Working: set hours that work for you and your team because outcomes matter more than when you started