The Darwin Runtime team at Apple is seeking enthusiastic engineers to develop low-level system technologies for Apple's operating systems. This role focuses on building foundational technologies such as Grand Central Dispatch, secure inter-process communication systems, and memory allocators. The team operates at the intersection of operating systems, programming language design, and systems security. Candidates will engage in design discussions and collaborate closely with kernel engineers and security architects to innovate and enhance Apple's computing platforms.

• BS or MS in Computer Science or equivalent degree
• 0-3+ years of relevant industry experience in low-level systems programming
• Fluency in the C programming language
• Experience with UNIX-like systems
• Strong understanding of operating system fundamentals like threading, synchronization primitives, and inter-process communication
• Knowledge of operating system implementation, hardware architecture, and assembly programming

• Develop low-level runtime technologies for Apple's operating systems
• Collaborate with kernel engineers, security architects, and framework developers
• Participate in design discussions and code reviews
• Contribute to the design and implementation of system architecture
• Engage in technical innovation and technology ownership

• 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.