As a Memory Performance Architect, you will be part of the System-on-Chip (SoC) architecture team, collaborating with hardware and software engineering groups to define the architecture of Apple's future devices. Your responsibilities will include architecture definition, exploration, and modeling of the memory subsystem, studying the performance/power trade-offs of new DRAM technologies, and optimizing efficiency for various products like Watch, iPhone, Mac, and Vision Pro. You will be expected to develop, document, and model innovative ideas in C++ to demonstrate their value and impact on SoC development, contributing to the next groundbreaking Apple product.