Senior Software Engineer, Client Applications

Overview

Key Responsibilities

• Design, implement, and maintain system-level components for FileCloud Desktop on Windows in modern C++ (C++17 and higher).
• Work with Win32/WinRT, the Windows Cloud Files API (CFAPI), and our custom driver 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 macOS experience, contribute to macOS system components in Swift using Apple File Provider and Endpoint Security/ESClient.
• Develop and maintain unit tests (gtest) and integration tests (Python + pytest) to build and extend automated coverage.
• Integrate with File Explorer for overlays, context menus, and other shell extensions, including COM where needed.
• Use tools like Visual Studio, WinDbg, and Procmon to debug complex issues in production-like environments.
• Contribute to build and CI/CD pipelines (e.g., Jenkins, WiX for installers, vcpkg for dependencies, PowerShell scripts where helpful).

Key Skills & Experience

• Modern C++ / Windows system programming
• Strong commercial experience with modern C++ (C++17 and higher).
• Solid knowledge of Windows internals: processes, C++ threading primitives (e.g. std::thread, std::mutex), synchronization, I/O, memory, security.
• Hands-on experience with Win32 APIs and willingness to work with WinRT as needed.
• Experience with multithreaded and asynchronous code.
• 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 Windows using Visual Studio and system tools (WinDbg, Procmon, logs).
• Collaboration & work style
• Ability to work independently and take ownership of complex subsystems.
• Comfortable using AI coding assistants (e.g. Claude Code, GitHub Copilot, Cursor, or similar) as part of a daily development workflow - for code generation, review, debugging, and documentation.
• Comfortable collaborating with UI (Electron/TypeScript/Vue), QA, and backend engineers.
• Good communication skills in English and prior experience in a remote or distributed team.