An IC layout developer is responsible for designing and optimizing the physical layout of integrated circuits (ICs). They utilize computer-aided design (CAD) tools to create and validate IC layouts, adhering to design rules and performance specifications. Their work includes designing individual circuit components, arranging them optimally on the chip, and connecting them to form complete circuits. They also perform simulations to verify the functionality and performance of the ICs. Additionally, they collaborate with other engineers to resolve design issues, improve chip performance, and reduce manufacturing costs. They play a crucial role in the production of semiconductors and electronic devices.