Join the team behind one of the world’s leading open-source file sync and collaboration platforms.
At Nextcloud, we empower users to take control of their data — securely, privately, and transparently. With a distributed team of 140 across 24 countries, we work remotely and foster a collaborative, trust-based culture built around our commitment to open source and digital sovereignty.
We’re looking for a passionate and skilled macOS Desktop Engineer to help shape the future of our Desktop Client — a core product relied on by millions of users worldwide. As part of our Desktop team, you’ll play a key role in building privacy-respecting, reliable, and high-performance sync software on macOS.

Responsibilities

• Improve and maintain the Qt/C++ cross-platform desktop sync client.
• Develop macOS-specific extensions using Swift and Objective-C++ (File Provider, AppKit).
• Troubleshoot and resolve complex sync issues across diverse systems.
• Participate in code reviews, community forums, and open-source development processes.
• Collaborate with fellow developers, designers, and community members across time zones.

• Contribute to the evolution of a secure and user-respecting alternative to proprietary cloud services.

  Requirements

• Proven experience with Swift, C++, and Objective-C++ (non-ARC).

• Solid grasp of Qt, AppKit, FileProvider, and Finder Sync.
• Familiarity with Xcode, CMake, Git, GitHub (PHP is a plus).
• Strong understanding of multithreading and concurrency (GCD, Swift Concurrency).
• Knowledge of macOS internals including launchd, fileproviderd, code signing, and app distribution.
• Comfort working independently in a remote, open-source team.

• Proficiency in English is required; additional languages are a plus.

  Nice to have

• Experience with Realm or other embedded databases.

• Background in cloud storage, file sync, or secure application development.
• Contributions to open-source projects or active participation in relevant communities.

• Improve and maintain the Qt/C++ cross-platform desktop sync client.
• Develop macOS-specific extensions using Swift and Objective-C++ (File Provider, AppKit).
• Troubleshoot and resolve complex sync issues across diverse systems.
• Participate in code reviews, community forums, and open-source development processes.
• Collaborate with fellow developers, designers, and community members across time zones.
• Contribute to the evolution of a secure and user-respecting alternative to proprietary cloud services