Senior Android Developer (Drive)

  • Proton
  • 06/07/2026
Full time Information Technology Telecommunications

Job Description

About Photos

Join the team building Proton Drive Photos, a private photo storage designed so your memories belong only to you. We're creating the encrypted alternative to Big Tech photo platforms, combining consumer grade UX with uncompromising privacy. If you want to build products used by millions while helping fix the internet, we'd love to meet you.

Role overview

As a full stack cross platform Android Engineer, you'll play a pivotal role in developing Proton Photos using Jetpack Compose and Rust. You'll use an end to end ownership approach, ensuring timely delivery of high quality, scalable solutions that will delight our customers.

Key responsibilities
  • Develop and maintain cross platform mobile applications for Android using a blend of cross platform (Rust) and native technologies (Kotlin)
  • Take end to end ownership of mobile application development projects: you'll be comfortable with scoping projects, walking back from deadlines and being able to discern the important from the superfluous
  • Foster a culture of innovation by exploring new technologies, methodologies and approaches to mobile development - we tackle complex engineering challenges with creativity and ingenuity
  • Optimise mobile applications for performance, usability and responsiveness across different devices and screen sizes
  • Master memory management, multithreading and concurrency mechanisms to enhance performance and responsiveness of mobile applications
  • Design for scalability, considering factors such as data caching, network bandwidth and server load
  • Prioritise customer satisfaction by maintaining a customer centric mindset throughout the development process, continuously seeking feedback and iterating to improve the user experience
The ideal candidate will bring
  • Bachelor's degree in Computer Science, Engineering or related field (or equivalent work experience)
  • Excellent problem solving skills and the ability to think outside the box to overcome challenges
  • Passion for continuous learning and driving change in the rapidly evolving field of mobile development
  • Excellent communication and interpersonal skills
  • Proficiency with Jetpack Compose for Android, 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 when it comes to engineering mobile applications
  • Previous experience working in a fast paced, scale up environment
What we offer
  • Technology: we provide all the devices and software you need to excel in your role, ensuring you have the best tools at your disposal to achieve your goals
  • Learning & Development: we are committed to your professional growth - Proton offers various learning opportunities, including training programs, conferences/events and continual learning
  • Employee Benefits: comprehensive health insurance plans, competitive retirement savings options, generous vacation/leave policies and wellness programs
  • Stock Options: at Proton, we are all owners of the company and you get stock options when you join us
  • In Person Collaboration: collaboration is easier and more effective in person, which is why we have offices in Geneva, Zurich, Prague, Barcelona, Paris, London, Vilnius, Skopje and Taipei - you can enjoy working from home for up to 30% of the time, while enjoying great company culture during our three core days in the office
  • Food: lunch and snacks are provided by Proton every day at our offices
  • Transport: we'll always support our employees with transport costs through subsidising public transport, bike allowances or parking spaces based on your office location
  • Flexible Working: you can define your own working hours as long as it works with team meetings
  • Work that Matters: Proton is a community first organisation, started with the support of a crowdfunding campaign and built with community input - to this day, Proton's only source of revenue is user subscriptions: over 100 million people trust and support Proton, and we put our users and community first in everything we do (read more about our impact here)
Our commitment to diversity and inclusion

At Proton, we believe diversity drives innovation and strengthens our mission to provide privacy as a default for all. We are committed to fostering an inclusive environment where all individuals, regardless of race, ethnicity, gender, age, sexual orientation, physical ability or socio economic background feel valued and empowered. We strive to create equal opportunities, promote open dialogue and support continuous learning to ensure every voice is heard and respected.

Candidate privacy notice

When you apply for a position, refer a candidate or are considered for a role at Proton Technologies AG (Proton, we, us or our), your information is stored in Greenhouse, in accordance with its Service Privacy Policy. This information is used to evaluate your suitability for the posted position. We also retain this information for consideration for future roles that you may apply for or that we believe may align with your background and skills.

If we no longer have a legitimate business need to process your information, we will either delete or anonymise it. Should you have any inquiries about how we use or manage your information or if you wish to access, correct or delete your data, please contact our privacy team at .

Proton does not accept unsolicited CVs from any sources other than directly from candidates. We will not pay a fee for any placement resulting from an unsolicited offer, even if the candidate is subsequently hired by Proton.

If you need any extra support or reasonable adjustments during the hiring process, please let your talent partner know.