We are a team of architects and specialists who are looking for an individual to help build and extend the frameworks that power connected applications across our ecosystem. You will help architect and implement the core system frameworks that power experiences like FaceTime, Mac Virtual Display, and more. Working at the intersection of 3D graphics, networking, and compression will be central to this role. The ideal candidate will have experience working on graphics APIs and 3D rendering. Primary responsibilities include leveraging Objective-C and Swift frameworks (e.g. RealityKit) together with networking frameworks for cross-device communication. You should be comfortable participating in architecture discussions, taking ownership of specific problem areas, articulating design choices, and delivering highly optimized code in performance-critical environments.