Hiring a Borland C++ Builder developer can bring significant benefits to your project. They have the expertise to leverage this comprehensive development tool for creating robust, high-performance applications. Their skills can simplify the complexities of Windows API, database, and network programming. They can also ensure faster, efficient development cycles with the tool's visual development environment and reusable components. Besides, their knowledge in C++ and Borland-specific libraries can boost the application’s performance and functionality. Overall, they can help in creating secure, scalable, and maintainable software solutions that can give your business a competitive edge.