Net software engineer Jobs in Genf

Join Proton and build a better internet where privacy is the default

Proton was founded in 2014 by scientists from CERN on a simple truth : privacy is a fundamental human right . Since then weve built the worlds largest encrypted email service (Proton Mail) and expanded into Proton VPN Proton Drive Proton Pass and Proton Calendartools used by millions globally to protect their freedom fight censorship and keep their data some situations Proton has literally helped save lives.

We are profitable independent (no VC control) and selectively hire from the top 1% of applicants. Our 500 team members across 50 countries come from leading organisations and elite academic backgrounds. We move fast keep hierarchy light and prioritise impact over optics. If you want to do meaningful work with exceptionally high-caliber people this is us and do work you can truly be proud ouropen-sourceprojects here!

The Role

As an engineer on our Apple team youll build and ship features across Protons apps on iPhone iPad and macOS working closely with product and engineers across the company to define what great looks like on Apple platforms. Our codebase is primarily Swift with some Go and were moving to a platform-independent Rust logical core that communicates with Swift via a generic interface so Rust experience is a strong plus. Quality is central to the role : youll contribute to and maintain our testing stack including unit tests for business logic stubbed API tests for pseudo-integration snapshot tests for UI and XCUITest for end-to-end user flows. Youll join a team that pairs deep technical expertise with an obsession for simple usable interfaces shipping privacy-preserving products used by millions.

What we are looking for :

• You have experience in iOS in particular with Swift
• You have a passion for mentoring other engineers and helping them grow
• You are passionate about user interaction usability and providing an excellent user experience
• Demonstrated experience driving change within an organisation and leading complex technical projects
• Extensive experience building maintainable and testable code bases including API design and unit testing techniques
• Extensive experience with concurrent programming and mobile memory management
• A strong grasp of scalable software architecture and software engineering best practices
• An intuition for optimal user experience and design
• Rust experience not required but a major plus
• Deep understanding ofAPNs UNUserNotificationCenter and iOS background execution(silent pushes background app refresh background URLSession) and how these impact app reliability
• Experience buildingoffline-first data flowswith local persistence (Core Data SQLite Realm or similar) and conflict-free sync

What We Offer

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.

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

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 their Service Privacy 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 anonymize 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 resumes 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.

To learn more about our privacy policy please visit our privacy policy page .

#LI-ONSITE

Required Experience :

Senior IC

Key Skills

Spring,.NET,C / C++,Go,React,OOP,C#,AWS,Data Structures,Software Development,Java,Distributed Systems

Employment Type : Full Time

Experience : years

Vacancy : 1