A Custom IC Layout Developer designs and develops integrated circuits (ICs) based on specific requirements or customizations. They use computer-aided design (CAD) tools for layout design, simulation, and verification of ICs. They work closely with circuit designers and engineers to translate circuit designs into physical layouts, taking into account factors like size, power, noise, and timing. They must also address issues like cross-talk, electromigration, and impedance matching. Once the layout is complete, they run various tests to ensure the IC functions as expected. They also need to be familiar with semiconductor technology, fabrication process, and industry standards.