Hiring a Linux Kernel developer brings expertise in managing the core of the Linux operating system, thus enhancing system performance, security, and stability. They can optimize your infrastructure for specific applications, develop device drivers, or customize the kernel. Their knowledge in C/C++, system level programming, and understanding of hardware-software interaction can help in troubleshooting issues more effectively. They can also contribute to open source projects, keeping your business up-to-date with the latest advancements. Their skill set can be crucial for businesses relying on Linux based servers, embedded systems, or IoT devices.