Hiring an Assembly Code developer provides you with an expert who can work with low-level programming languages. They can manipulate system hardware directly, optimize code for speed and memory usage, and diagnose system-specific issues. These developers are valuable when developing performance-critical systems like operating systems, real-time systems, and embedded systems. Their knowledge can also aid in reverse engineering tasks. By understanding the intricacies of hardware-software interaction, they ensure your software is highly efficient and tailored to your specific system requirements.