The CPU Performance Engineer will join the CPU Architecture and Performance Team, focusing on CPU micro-architecture to drive innovation for next generation iPhone, iPad, and Mac CPU architectures. This role involves analyzing performance and power simulation environments while collaborating with experienced CPU designers. The engineer will seek areas for improvement in branch prediction, prefetchers, and CPU pipelines. The position requires a strong background in coding and an understanding of data structures and algorithms.

• BS degree in Electrical or Computer Engineering or Computer Science
• Experience with CPU architecture and micro-architecture
• Experience in performance and/or power simulation environments
• Coding experience including object-oriented programming with C and C++
• Experience in scripting languages such as Perl or Python
• 3+ years of relevant industry experience
• MS or PhD in Electrical or Computer Engineering or Computer Science
• Understanding of common data structures and algorithms
• Knowledge in software design patterns
• Familiarity with SIMD and vector architectures
• Knowledge of OS internals and compiler technologies
• Comfortable in an environment of uncertainty and able to walk through ambiguities
• Strong communication, influence, and negotiation skills

• Analyze specific single-threaded and multi-threaded workloads to identify bottlenecks and opportunities for improvement.
• Collaborate with CPU designers to assess the feasibility of ideas through modeling.
• Refine ideas and model correlation to seed new concepts.
• Maintain and improve the simulation environment to enable data-driven decisions.
• Seek out areas for improvement while collecting data and measurements.

• 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.