The CPU Platform Architecture team at Apple is focused on enhancing CPU performance for various products, including iPhone, iPad, and Mac. They are looking for a CPU Performance Engineer to optimize CPU and cache micro-architecture, particularly in the memory subsystem. The role involves identifying performance bottlenecks and collaborating with experienced designers to refine and model new ideas. The engineer will also analyze workloads to drive data-driven decisions and improve team productivity.

• BS degree in Electrical or Computer Engineering or Computer Science
• 10+ years of relevant industry experience
• Experience in CPU and SoC architecture and micro-architecture
• Experience with performance simulation environments
• Object-oriented programming experience in C/C++
• Experience in a scripting language such as Perl or Python
• Knowledge of memory latency tolerance techniques or other aspects of CPU memory subsystem
• Understanding of common data structures and algorithms
• Familiarity with SIMD, vector, or accelerator architectures
• Familiarity with MP performance
• MS or PhD in Electrical or Computer Engineering or Computer Science is preferred
• Comfortable in an environment of uncertainty and able to navigate through ambiguities
• Experience in a research-driven environment

• Define and optimize CPU and cache micro-architecture.
• Identify performance bottlenecks in CPU designs.
• Evaluate ideas to address performance issues through modeling.
• Collaborate with CPU and SoC designers to assess feasibility of ideas.
• Analyze single-threaded and multi-threaded workloads for improvement opportunities.
• Maintain and improve the simulation environment for data-driven decisions.
• Seek ways to boost the productivity of the entire CPU architecture and performance team.

• 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.