The Core OS organization is seeking an extraordinary engineer to work on advanced technology for macOS, iOS, tvOS, watchOS, and visionOS. This role focuses on ensuring the operating system is integrated with each device's identity, emphasizing collaboration across disciplines. The engineer will participate in all stages of software development, from feature design to maintenance and bug fixing. A strong understanding of operating system fundamentals and experience with UNIX platforms is essential for success in this position.

• B.S. in Computer Science or equivalent experience
• Strong proficiency in C, C++, or Objective-C
• Experience with an object-oriented language
• Experience with operating system design and development
• Development experience on macOS and/or iOS
• Experience with common embedded hardware architectures
• Experience building diagnostics, observability, or telemetry infrastructure
• Familiarity with Xcode
• Excellent collaborative skills, written and verbal communication
• Exceptional professionalism, with the ability to deliver solid work on tight schedules
• A genuine passion for consumer devices

• Participate in all stages of software development, including new feature design and implementation.
• Maintain and fix bugs in released code.
• Develop and improve unit tests and performance tests.
• Work on diagnosing and resolving customer-reported issues.
• Be responsible for daemons and frameworks that support functionality throughout the system.
• Provide design guidance and technical support to teams across the company.

• Employees at Apple are often offered comprehensive benefits that support physical and mental well-being—flexible medical plans, confidential counseling, onsite wellness centers at major campuses, and resources for fitness and daily life. Families typically receive fertility support, paid parental leave with gradual return, caregiving leave, and dependent-care guidance, while financial perks commonly include stock grants (with purchase discounts), 401(k) matching, and income-protection coverage. Employees also see robust time off, Apple University learning and tuition reimbursement, donation matching and paid volunteer hours, and deep product and partner discounts.