Dung N.

C++ Systems Developer | Security Software | Windows & Linux Internals I help companies build high-performance system software in C/C++ for Windows and Linux. My expertise is in low-level development where performance, reliability, and deep OS integration matter. I have experience developing security and system software, including file scanning engines, process protection/self-defense mechanisms, and cross-platform infrastructure. I work comfortably with OS APIs, filesystem internals, and debugging complex runtime issues. I also design automated testing environments using virtual machines to validate software across multiple OS versions and kernel configurations. What I can help with: - C / C++ system software development - Windows API & Linux system programming - Security software and endpoint protection components - Cross-platform libraries and infrastructure - Performance optimization and debugging - Logging, diagnostics, and runtime analysis - VM-based automated testing environments I focus on writing clean, efficient, and production-ready code that integrates deeply with the operating system.