Are you a big-picture problem solver who loves setting ambitious goals? Do you have a passion for understanding how each line of code affects all the others? In the Core Operating Systems group, you’ll ensure the OS is inseparable from each device’s identity as a whole. That’s because this group is committed to building fully integrated operating systems that combine hardware, software, and apps into a single Apple experience. Your dedication to cross-disciplinary collaboration will help develop groundbreaking technologies, such as iOS, macOS, watchOS, and tvOS. By crafting these distinct, holistic user experiences, you’ll continue to uphold and advance the excellence people expect from Apple devices! The Core OS organization is seeking an extraordinary engineer to work on state-of-the art technology for macOS, iOS, tvOS and watchOS. You should have a strong understanding of operating system fundamentals and experience working throughout the stack. As a member of the team, you would participate in all stages of software development, from new feature design and implementation, to maintenance and bug fixing of released code. You will develop and improve unit tests and performance tests, and may also work on diagnosing and resolving customer reported issues.

You will primarily be responsible for daemons and frameworks that support functionality throughout the system. Specifically, this role involves working on daemons to support Apple Intelligence and the management of models for on-device inference. Previous experience with writing or maintaining daemons, libraries and command line tools on a UNIX platform is key. You should have excellent analytical skills and debugging experience. In addition to developing and maintaining individual projects, you will also be expected to provide design guidance and technical support and expertise to teams across the company.

Expert-level skills in C, Objective-C, or SwiftStrong understanding of OS architecture and systems programming fundamentalsExcellent written and verbal communication