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Senior Android Engineer (Pass)

Mobile Developer • Senior • On-site • Full-time • 📍 Barcelona +1

Proton is hiring a fullstack, cross-platform Senior Android Engineer to play a pivotal role in developing Proton Pass using Jetpack Compose and Rust. The role calls for end-to-end ownership, ensuring timely delivery of high-quality, scalable solutions, and drives innovation across the Proton Pass and SimpleLogin products. The position is on-site with up to 30% work from home.

Responsibilities

  • Develop and maintain cross-platform Android applications using a blend of cross-platform (Rust) and native (Kotlin) technologies
  • Take end-to-end ownership of mobile development projects: scoping, planning back from deadlines and separating the important from the superfluous
  • Explore new technologies, methodologies and approaches, tackling complex engineering challenges with creativity
  • Optimise applications for performance, usability and responsiveness across devices and screen sizes
  • Master memory management, multithreading and concurrency to enhance performance and responsiveness
  • Design for scalability, considering data caching, network bandwidth and server load
  • Maintain a customer-centric mindset, continuously seeking feedback and iterating on the user experience

Requirements

  • Bachelor's degree in Computer Science, Engineering or a related field, or equivalent work experience
  • Proven experience developing Android applications with Kotlin
  • Proficiency with Jetpack Compose and familiarity with Rust
  • Strong understanding of mobile app architecture, design patterns and best practices
  • Knowledge of memory management techniques and best practices
  • Experience with multithreading and concurrency in mobile applications
  • Good understanding of scalability considerations in mobile engineering
  • Previous experience in a fast-paced, scale-up environment

Soft skills

Excellent problem-solving and out-of-the-box thinkingPassion for continuous learning and driving changeExcellent communication and interpersonal skillsAmbition and enthusiasm driving innovation

What we offer

  • All the devices and software needed to excel
  • Learning and development: training programs, conferences and continual learning
  • Comprehensive health insurance, competitive retirement savings, generous vacation and wellness programs
  • Stock options
  • In-person collaboration with offices in Geneva, Zurich, Prague, Barcelona, Paris, London, Vilnius, Skopje and Taipei; up to 30% work from home
  • Free lunch and snacks in the offices every day
  • Transport support: public transport, bike allowance or parking
  • Flexible working hours aligned with team meetings

About the company

Proton, founded in 2014 by scientists from CERN, builds free and open-source privacy technology: Proton Mail, Proton VPN, Proton Calendar, Proton Drive and Proton Pass. It is profitable, does not rely on VC funding, supports over 100 million user accounts, and has a team of over 500 people from more than 50 countries with a flat, fast-moving structure.

Education: Alapdiploma (BSc) informatika, mérnöki vagy kapcsolódó területen, vagy egyenértékű munkatapasztalat