Platform Kernel Software Engineer

The Darwin Systems organization plays a vital role in Apple's success. We are responsible for the XNU kernel running at the heart of the operating systems deployed across all iPhone, iPad, Mac, Watch, Apple TV, and Vision devices. As a member of Darwin Systems, you’ll have the opportunity to develop innovative kernel technologies. Your code will run on billions of devices worldwide, and you’ll be given the ownership and agency to influence the future direction of our products. The Platform Kernel team within Darwin Systems develops and maintains all CPU and architecture-specific layers of the kernel. We are also directly responsible for kernel bring-up on all Apple chips, supporting the entire product development lifecycle from pre-silicon simulation to production. Join the Platform Kernel team and help shape the future of our iconic devices!

Our team designs and implements new kernel technologies, including support for architectural and CPU-specific features introduced on as-yet-unreleased Apple platforms. We do bring-up, verification, and debugging of the XNU kernel on all new Apple silicon platforms throughout the entire product development lifecycle, from pre-silicon simulation and FPGA through to prototype and production silicon tape-out and post-release maintenance. We collaborate with engineering and silicon design teams across Apple to drive the features and specifications of Apple’s future products.

Programming in C and Assembly, ideally ARM. Previous experience in kernel/firmware/driver development, ideally on a UNIX-like kernel. Extensive knowledge of modern CPU design, hardware platforms, and computer architecture, ideally ARM. Ability to debug low-level hardware/software issues.

BS in Computer Science, Computer Engineering, or equivalent professional experience. Ability to communicate clearly about technical topics (verbal and written). Passion to collaborate on challenging multi-functional projects.