T cells are evolving from targeted killers into fully programmable cellular systems. Advances in synthetic biology, AI-driven receptor design, and genome-scale datasets are enabling immune cells that not only recognize disease, but sense context, compute signals, adapt over time, and execute coordinated responses inside the body. This session brings together leaders across academia and industry to explore how next-generation CAR and TCR design, structural modeling, and large biological foundation models are reshaping immune engineering. Beyond receptor optimization, we will examine logic circuits, combinatorial sensing systems, control layers, and in vivo reprogramming strategies that transform T cells into dynamic therapeutic platforms. As immune cell engineering moves toward off-the-shelf products and in vivo editing approaches, we will address the deeper architectural questions: How do we design cells that avoid exhaustion, function within hostile tumor microenvironments, and maintain safety over time? What does it mean to treat T cells as living software systems? And how do we build programmable immune therapies that are scalable, durable, and globally accessible?