A Microcode Developer designs, develops, and tests microcode software that forms the core of computer processors. They create instructions set architectures that control the operations of CPU, GPU, or other processing units. Their work involves writing and debugging low-level code in assembly or machine language, ensuring the hardware executes high-level language instructions correctly. They also work on enhancing performance, power efficiency, and reliability of the processor. Their role often requires collaboration with hardware engineers to design and troubleshoot new chip architectures. They play a crucial role in the development and improvement of computer technology.