Hiring a Midlayer Kernel Module developer comes with a plethora of advantages. Firstly, these developers have a deep understanding of the operating system’s core, enabling them to write code that interacts directly with the hardware, thereby improving the system's efficiency and performance. They can design, develop, test, and debug kernel modules, thus ensuring the stability and reliability of the system.

Secondly, Midlayer Kernel Module developers can contribute significantly to the development of device drivers, which are essential for hardware-software interaction. They can swiftly pinpoint and rectify hardware and software compatibility issues, leading to smoother operations.

Thirdly, these developers can also enhance the security of an operating system. By working on the kernel level, they can identify potential security risks and develop appropriate solutions, thus ensuring the system's safety and integrity.

Lastly, their skills can be instrumental in customizing the operating system to meet specific business requirements. They can modify the kernel to optimize it for specific applications or hardware, increasing the overall productivity and effectiveness of the system.

In conclusion, hiring a Midlayer Kernel Module developer can lead to improved system performance, enhanced security, and tailored solutions, thereby increasing operational efficiency and business productivity.