The Performance Modeling Engineer will join the GPU Performance Modeling Team, focusing on defining and optimizing Apple's GPU micro-architecture. This role involves collaborating with experienced designers to analyze workloads and identify bottlenecks for improvement. The engineer will architect new simulator features and work with GPU and SoC Architects to enhance performance models. This position requires a strong understanding of computer architecture and the ability to work through ambiguities in a high-impact environment.

• Minimum of BS degree with 10 years of relevant experience.
• Experience with object-oriented programming such as C or C++.
• Experience with scripting languages such as Perl, Python, or Ruby.
• Familiarity with a range of performance and/or power simulation environments.
• Strong understanding of common data structures and algorithms.
• Knowledgeable in software design patterns.
• Strong knowledge of computer architecture and micro-architecture.
• Strong communication, influence, and negotiation skills.

• Perform C++ performance modeling of proposed architectural solutions and features.
• Gather, analyze, and validate measured and simulated results to compare architectural design alternatives.
• Carefully analyze and present results to enable data-specific architecture and design.
• Write architectural specification documents in collaboration with engineers across different disciplines.
• Work with multi-functional teams to develop architectural solutions.
• Improve Apple's modeling platform by developing APIs, tools, and optimal standard examples.

• 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.