A LINUX based systems developer designs, develops, and optimizes system-level software using the LINUX kernel. They work on the core of the operating system and are responsible for adding new features, fixing bugs, and improving system performance. Their tasks may include writing device drivers, developing system-level applications, configuring network settings, or improving the file system. They must understand LINUX architecture, be proficient in C programming, and be capable of debugging software at a low level. Additionally, they often work closely with other developers, sharing knowledge and collaborating to enhance the overall system functionality.