Proton

Senior Android Software Engineer - London

Proton
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18 days ago
London, United KingdomSenior

Responsibilities

  • Build and ship high-quality Android applications using Kotlin and Jetpack Compose.
  • Own features end to end, from scoping and technical design through delivery and iteration.
  • Design maintainable, scalable, and testable mobile architectures.
  • Collaborate with product, design, and engineering teams across large codebases.
  • Address performance, concurrency, multithreading, memory management, caching, network usage, responsiveness, and offline behavior.
  • Contribute to Android applications that communicate with a shared Rust logical core.
  • Mentor engineers and help raise the team’s technical bar.

Requirements

  • Extensive experience building and shipping high-quality Android applications with Kotlin.
  • Strong experience with Jetpack Compose and modern Android development practices.
  • Experience taking end-to-end ownership of features and building scalable, testable mobile architectures.
  • Strong understanding of performance, concurrency, multithreading, and mobile memory management.
  • Understanding of mobile scalability, including caching, network usage, responsiveness, and offline behavior.
  • Ability to work across large codebases, collaborate across teams, and contribute to product and technical discussions.
  • Experience mentoring engineers.
  • Experience with privacy, security, encryption, sync systems, or offline-first architectures is preferred.
  • Rust experience is preferred but not required.

Benefits

  • Stock options and ownership opportunity.
  • Hardware and software provided for effective work.
  • Learning and development support.
  • Health coverage, retirement options, generous leave, and wellness support.
  • Primarily in-person collaboration at the London office and other Proton offices.
  • Free office lunch and snacks.
  • Public transport, bike allowance, or parking coverage.
  • Flexible working hours and schedule.

Tech Stack

Jetpack ComposeKotlinRust

Categories

Mobile
Proton

About Proton

501-1,000 employees
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