Hiring a C++ developer provides you with a professional skilled in a version of C++ enhanced with new features like concurrency support and improved memory management. These developers can deliver efficient, reliable, and faster software solutions due to the language's performance-centric nature. Their expertise can help solve complex computational problems, develop high-performance applications, and maintain legacy systems. Furthermore, C++'s compatibility with C allows for easier integration with existing codebases. Thus, a C++ developer can significantly enhance your software's performance and functionality.