Senior Android Software Engineer - Paris

Proton AG; Paris; Sur place; EUR 60 000 - 115 000; Plein temps

Avantages offerts par ce poste

Stock options

Health coverage

Wellness support

Lunch and snacks provided

Flexible working

Résumé du poste

Proton AG is seeking a Senior Android Software Engineer in Paris to join a high-impact product team. You will build Android experiences using Kotlin and Jetpack Compose, contribute to a privacy-first ecosystem, and collaborate with Protons across Inbox, Account, and Meet initiatives.

You will own features end-to-end, optimize performance, and contribute to scalable mobile architectures while mentoring peers and aligning with product goals.

Qualifications

• Extensive experience shipping Android apps with Kotlin.
• Strong Jetpack Compose and modern Android practices.

Responsabilités

• Own end-to-end feature delivery from scoping to release.
• Collaborate across multiple teams to build scalable mobile architectures.
• Mentor engineers and raise the technical bar within the team.

Connaissances

Kotlin

Jetpack Compose

Android architecture

End-to-end ownership

Performance optimization

Multithreading

Offline-first architectures

Privacy/security knowledge

Rust experience (plus)

Outils

Rust

Description du poste

Senior Android Software Engineer - Paris

Paris

The Role

Based in our Paris office, you’ll join one of several high-impact product teams focused on Inbox (Proton Mail and Calendar), Proton Account, Lumo, and Meet, helping build the foundational experiences that power Proton’s ecosystem and the next generation of privacy-first products. You will work on technically ambitious products with real-world impact, building and shipping high-quality Android experiences using Kotlin, Jetpack Compose, and an increasingly shared Rust core.

What we are looking for

• 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.
• 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 We Offer

• Work that matters: millions of people trust Proton with their privacy. The work you do is real and the impact is measurable.
• Stock options.
• Technology: you’ll get the right hardware and the right 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 in our offices across Geneva, Zürich, Barcelona, London and more.
• Food: lunch and snacks are on us every day in our offices.
• Transport: we cover public transport, bike allowances, or parking.
• Flexible working: you own your schedule; outcomes matter more than hours.

Compensation range

60,000 – 115,000 EUR gross annually. Final compensation will be determined based on the candidate's qualifications, skills, and previous experience.

Our commitment to diversity and inclusion

At Proton, we believe diversity drives innovation. 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.

Candidate privacy notice

When you apply for a position, 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 and may be retained for consideration for future roles that align with your background and skills. If we no longer have a legitimate business need to process your information, we will delete or anonymise it. Please contact our privacy team at [e-mail] for inquiries or to access, correct, or delete your data.

Proton does not accept unsolicited CVs from any sources other than directly from candidates, and we will not pay a fee for placement resulting from an unsolicited offer.