JobsCPU Processor Performance Verification Engineer
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CPU Processor Performance Verification Engineer

Apple

Location

Santa Clara, CA

Type

Full-time

Posted

5/5/2026

Compensation

Not listed

Undergraduate with 2+ Years of Experience
Approval 98.9%·Filings 5,543·New hires 2,691·
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·FY 2025

Job description

As a CPU Processor Performance Verification Engineer at Apple, you will play a crucial role in chip design, focusing on silicon performance verification and tuning for CPUs. You will collaborate with architects, RTL designers, and software developers to identify performance bottlenecks and enhance software performance. This position requires a blend of technical expertise in performance modeling and strong communication skills to present findings to multi-functional teams. Your work will directly impact the delivery of innovative products to millions of customers.

Requirements

  • Bachelor's degree in a relevant field.
  • Academic experience with performance modeling, processor verification, or RTL design.
  • Academic experience in digital logic design, CPU architecture, and microarchitecture.
  • Experience in at least one of the following: assembly, C/C++, Verilog, or System Verilog.
  • Experience in developing performance test plans and writing/debugging assembly tests for performance correlation and verification.
  • Experience in benchmark and workload analysis and CPU performance profiling.
  • Knowledge of compiler techniques and OS for performance optimization.
  • Knowledge in developing instruction profiling tools on silicon.
  • Experience in performance modeling for advanced CPU designs.
  • Experience in silicon validation.
  • Ability to work across teams to optimize silicon performance.
  • Excellent communication and presentation skills.

Responsibilities

  • Work closely with architects and RTL designers on verifying the performance features of the design and correlating with performance models.
  • Collaborate with software and application developers to identify performance bottlenecks and tune the software.
  • Develop test plans and test infrastructure/tools for performance tuning, correlation, and verification.
  • Improve and maintain the architectural performance models.
  • Develop tests in assembly, C/C++, or vectors to debug and correlate the RTL and performance model.
  • Create C or Verilog-based checkers for verifying the performance features.
  • Develop coverage monitors and analyze coverage to ensure all performance features are covered.
  • Debug performance issues and conduct performance tuning on silicon.
  • Benchmark, correlate, and compare CPU performance across silicon, OS, and compiler versions.
  • Present CPU performance results to multi-functional teams.
  • Work closely with OS and compiler teams on system and application performance tuning.

Benefits

  • 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.

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