Drive C++ Engineer

This is a remote position.

Job Title: Drive C++ Engineer

About the Role

We are building a high-performance Windows desktop application that enables seamless synchronization of customer files between the cloud and Windows File Explorer.

This role involves developing a robust C++/CLI interop layer bridging native C++ and .NET 8.0, along with deep integration into the Windows ecosystem using the Cloud Filter API (cfapi.h).

The solution is designed for Windows 10+, built using Visual Studio 2022 and Windows SDK 10.0, with a strong focus on scalability, performance, and production-grade reliability.

Key Responsibilities

• Design and develop core components of a cloud file sync engine for Windows
  
• Build and maintain C++/CLI interop layers between native C++ and .NET applications
  
• Implement deep integration with Windows File Explorer using Cloud Filter API
  
• Develop and manage file system event callbacks and sync workflows
  
• Ensure high performance, stability, and maintainability of the application
  
• Work on multi-threaded and asynchronous architectures
  
• Debug and troubleshoot across managed and unmanaged code boundaries
  
• Collaborate with cross-functional teams to deliver production-ready solutions
  

Must-Have Qualifications

Cloud Sync Engine Development

• Hands-on experience with Windows Cloud Filter API (cfapi.h) or similar OS-level sync technologies
  
• Strong understanding of:
  
• Sync root registration
  
• Placeholder file states
  
• On-demand hydration patterns 
  
• Experience implementing native callback handlers for file system events
  

Modern C++ Expertise (C++20)

• 5+ years of professional experience in native C++ development on Windows
  
• Strong knowledge of modern C++ features:
  
• std::variant, std::optional, std::string_view
  
• Lambdas, std::function, and functional programming patterns
  
• Template metaprogramming and variadic templates
  
• Deep understanding of:
  
• Memory management
  
• Pointer safety
  
• RAII principles
  

C++/CLI Interop

• Experience building mixed-mode C++/CLI assemblies targeting .NET Core / .NET 8.0
  
• Expertise in designing ref class wrappers for native-to-managed interaction
  
• Understanding of managed/unmanaged boundaries within a single project
  
• Experience with string marshaling (std::wstring ↔ System::String^)
  

Windows Systems Programming

• Strong knowledge of:
  
• Win32 API
  
• Windows Shell APIs
  
• File System APIs
  
• Experience with multi-threading, including:
  
• Thread pools and task scheduling
  
• Synchronization primitives (std::mutex, std::shared_mutex, etc.)
  
• Async and callback-based architectures
  
• Familiarity with Windows SDK 10.0 and Windows 10+ development
  

COM Programming

• Experience implementing COM components:
  
• IUnknown, reference counting, class factories
  
• Knowledge of:
  
• DLL exports (DllGetClassObject, DllRegisterServer, etc.)
  
• Registry-based COM registration
  

Build Systems & Tooling

• Proficiency in Visual Studio 2022 for mixed C++/C# solutions
  
• Experience with MSBuild and .vcxproj configurations
  
• Ability to debug across managed and unmanaged environments
  

Nice-to-Have Qualifications

Windows Shell Extensions

• Experience with:
  
• Context menu handlers (IContextMenu, IShellExtInit)
  
• Icon overlays and property handlers
  
• Understanding of Windows Explorer integration patterns
  

.NET Desktop Development

• Experience with .NET 8.0 WPF applications
  
• Familiarity with MVVM architecture and data binding
  
• Ability to contribute to C# codebase
  

Database & Serialization

• Experience with SQLite (C API)
  
• Familiarity with nlohmann/json or similar libraries
  

Installer & Deployment 

• Experience with:
  
• NSIS installer scripting
  
• WiX Toolset v4 for MSI packaging
  
• Knowledge of enterprise deployment best practices
  

CI/CD & Testing

• Experience with GitHub Actions for Windows builds
  
• Familiarity with:
  
• Unit testing
  
• Integration testing
  
• End-to-End testing
  

Security & Authentication

• Experience with Windows Credential Manager
  
• Understanding of OAuth 2.0 flows in desktop applications
  
• Knowledge of Windows security and file system permissions
  

Logging & Observability

• Familiarity with structured logging (ECS/Elastic Common Schema)
  
• Experience with centralized logging tools (e.g., Elasticsearch)
  

Bonus Points

• Experience building cloud sync clients (e.g., OneDrive, Dropbox, Google Drive)
  
• Knowledge of chunked/resumable file upload & download mechanisms