Hiring an Assembly developer comes with several advantages. Firstly, these developers have a profound understanding of low-level programming. They can write highly efficient code that can optimize your system's performance by utilizing the hardware capabilities to their full potential. This is crucial in scenarios where resources are limited and high speed is required, such as in embedded systems or real-time systems.

Secondly, their knowledge of assembly language allows them to troubleshoot and debug at the hardware level. They can provide insights into the intricate details of how the software interacts with the hardware, which is invaluable in diagnosing complex system issues.

Thirdly, Assembly developers often have a solid background in computer architecture, enabling them to design more efficient algorithms and data structures. This expertise can lead to software that is more robust, maintainable, and scalable.

Lastly, their skills can be instrumental in reverse engineering and vulnerability analysis. They can examine compiled code to understand its functionality, find security loopholes, and devise patches or workarounds, thereby enhancing system security.

In conclusion, Assembly developers, with their unique set of skills, can bring significant value to your team, especially in projects where system performance, efficiency, and security are paramount.