Senior Software Engineer, Client Applications macOS

FileCloud is looking for a highly skilled Senior Software Engineer, Client Applications (macOS) to join our team in Riyadh, the Kingdom of Saudi Arabia. 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. This role is fully office-based and will require working in our KSA office with other members of the remote FileCloud team

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).
• 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, I/O, memory, security entitlements.
• Hands-on experience with macOS/POSIX and Apple framework APIs (Foundation, FileProvider, EndpointSecurity, XPC).
• Experience with multithreaded and asynchronous code using Swift structured concurrency (async/await, actors, Tasks).

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, I/O, memory, security entitlements.
• Hands-on experience with macOS/POSIX and Apple framework APIs (Foundation, FileProvider, EndpointSecurity, XPC).
• Experience with multithreaded and asynchronous code using Swift structured concurrency (async/await, actors, Tasks).

Filesystems, sync & networking

• Good understanding of filesystem behavior: notifications, caching, metadata, locking, renames, symlinks/junctions.
• Experience in or strong interest in sync/backup clients, cloud storage, or related areas.
• Familiarity with networked applications (HTTP/HTTPS, TLS, proxies) from a developer perspective.

APIs, testing & debugging

• Experience with RPC / typed APIs (e.g. gRPC, JSON/REST, or similar) and willingness to work with gRPC daily.
• Hands-on experience writing automated tests: unit tests in gtest and integration tests in Python + pytest.
• Strong debugging skills on macOS using Xcode, LLDB, Instruments, and system tools (Console.app, fs_usage, log stream).