The OS Performance Tools team is seeking a software developer with expertise in optimization techniques and application design to enhance performance outreach and developer engagement. This role supports the performance of iOS, macOS, tvOS, and watchOS, providing third-party developers with essential tools and data. The ideal candidate will have a foundational understanding of software layers and a keen interest in learning the entire stack. Responsibilities include addressing usability, cross-platform compatibility, and debugging performance issues across Apple's Operating Systems.

• Expertise in at least one layer of software development such as embedded, UI, or server.
• Understanding of how data influences decision making in software development.
• Aptitude for independently learning new technologies and proposing software design solutions.
• Prior development experience in Unix, Linux, or macOS.
• Excellent spoken and written communication skills.
• A degree in Computer Science or equivalent experience.
• Experience in mobile app development.
• Understanding of Operating System fundamentals.
• Knowledge of large data processing and complex data visualization.

• Work on performance tools that model various aspects of Apple's Operating Systems.
• Enable teams to tackle challenging multi-functional performance problems.
• Solve problems related to usability and user experience.
• Address cross-platform compatibility issues.
• Debug performance issues across the Operating System.
• Collaborate with teams to enhance product quality and attention to detail.

• 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.