FileCloud is looking for a highly skilled Senior Software Engineer, Client Applications (macOS) to join our team in Europe. You will work on the core sync and OS integration layer of FileCloud Desktop on macOS. Your primary focus will be system-level development in Swift, using Apple’s File Provider framework and a strong understanding of macOS internals, filesystems, and OS integration. You will design and implement core sync and filesystem logic, integrate with Finder, and collaborate closely with QA and UI teams. The role requires someone who can work independently in a remote environment and take ownership of complex technical areas. About the Product & Company: FileCloud is a hyper-secure EFSS (enterprise file sync and share) platform that provides industry leading compliance, data governance, data leak protection, data retention and digital rights management capabilities. FileCloud is a leader in content governance and collaboration for unstructured data, trusted and used worldwide across Global 1000 enterprises, educational institutions, government organizations, and service providers. In addition to its enterprise file sharing solution, FileCloud’s product portfolio also includes Signority (acquired in May 2024), a Canadian-based e-signature and document workflow platform. We are currently expanding our team as we grow and improve FileCloud. Key Responsibilities:

• Design, implement, and maintain system-level components for FileCloud Desktop on macOS in Swift (Swift 5.5 and higher).
• Work with Apple’s File Provider framework, FileProvider domain management, and Endpoint Security/ESClient to handle filesystem events, placeholders, hydration/dehydration, and user actions.
• Implement and maintain gRPC services and clients (and JSON/REST-style APIs where applicable) that connect system components to higher-level layers (Electron/TypeScript UI, server-side services).
• If you have Windows experience, contribute to Windows system components in modern C++ using the Windows Cloud Files API (CFAPI).
• Develop and maintain unit tests (gtest) and integration tests (Python + pytest) to build and extend automated coverage.
• Integrate with Finder for file badges, context menus, and other extensions using File Provider and PlugInKit.
• Use tools like Xcode, LLDB, and Instruments to debug complex issues in production-like environments.
• Contribute to build and CI/CD pipelines (e.g., Jenkins, Xcode build system, Swift Package Manager, shell scripting).

Key Skills & Experience: Swift / macOS system programming

• Strong commercial experience with Swift (Swift 5.5 and higher), including async/await, actors, and structured concurrency.
• Solid knowledge of macOS internals: processes, Grand Central Dispatch, Swift concurrency primitives, synchronization...