Hiring a C++ developer has several advantages. The first one being their ability to work with legacy systems. Many organizations still use older systems that were built using C++, and hiring a developer skilled in this language ensures compatibility and smooth operations. They have a deep understanding of core programming concepts, as C++ requires a solid grasp of memory management, object-oriented programming, and low-level system interactions.

These developers tend to have excellent problem-solving skills, as C++ often requires more manual work and debugging than newer, more automated languages. This means they can effectively troubleshoot and resolve complex issues. Additionally, their knowledge isn't limited to just C++. Often, they're proficient in other versions of C++ and can adapt quickly to newer language iterations.

Their expertise in C++ also makes them invaluable when migrating to new systems or updating old software. They can ensure a smooth transition while preserving crucial functionalities. Moreover, C++ developers often have a lot of experience, as the language has been around for a while. This experience can provide valuable insights and contribute to a team's overall knowledge base. Lastly, C++ developers are often more cost-effective, as they're more readily available and less in demand than developers specializing in newer languages.