Senior Software Engineer, Client Applications macOS

Overview

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).