Hiring an In-Circuit Emulator (ICE) developer can significantly improve your hardware debugging process. An ICE developer has specialized skills in real-time testing and debugging of embedded systems, which can help in identifying and rectifying issues more efficiently. They have deep understanding of microcontrollers and microprocessors, and can provide insights into the inner workings of your system. They can help in developing, testing, and optimizing code for better performance, ensuring your products are robust, reliable, and efficient. Their expertise can greatly reduce the time to market, giving you a competitive edge in the industry.