CPU Processor Performance Verification Engineer

SummaryPosted: Sep 16, 2025Role Number:200619509-3760Imagine what you could do here! At Apple, new ideas have a way of becoming extraordinary products, services, and customer experiences very quickly. Bring passion and dedication to your job and there''s no telling what you could accomplish. Dynamic, hard-working people and inspiring, innovative technologies are the norm here. The people who work here have reinvented entire industries with all Apple Hardware products. The same passion for innovation that goes into our products also applies to our practices strengthening our commitment to leave the world better than we found it! Join us to help deliver the next groundbreaking Apple product. In this highly visible role, you will be at the center of a chip design effort collaborating with all subject areas, with a critical impact on getting functional products to millions of customers quickly. You will be responsible for silicon performance verification, correlation, characterization and tuning for CPUs. The role involves pre-silicon performance verification as well as developing tests to characterize CPU performance, analyzing and profiling software/applications, correlating and comparing performance across silicon/system software version, and working with OS and compiler teams on performance debug and tuning.DescriptionAs a CPU Processor Performance Verification Engineer owning the verification of a certain area of performance features in a chip design, you will have responsibilities as follows: • Work closely with architects and RTL designers on verifying the performance features of the design and correlating with performance models (both pre-silicon and post-silicon) • Work closely with software and application developers on identifying performance bottlenecks and tuning 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 • Develop 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/compiler versions • Present CPU performance results to multi-functional teams • Work closely with OS and compiler teams on system and application performance tuningMinimum QualificationsMinimum BS and 10+ years of relevant industry experiencePerformance modeling, processor verification, or RTL design experienceExperience in digital logic design, CPU architecture, and microarchitectureExperience in developing performance test plans and writing/debugging assembly tests for performance correlation and verificationProgramming skills in assembly, C/C++, Verilog, System Verilog, or scriptingPreferred QualificationsExperience in benchmark and workload analysis and CPU performance profilingKnowledge of compiler techniques and OS for performance optimizationKnowledge in developing instruction profiling tools on siliconExperience in performance modeling for advanced CPU designsExperience in silicon validationAbility to work across teams to optimize silicon performanceShould be a great teammate with excellent communication and presentation skills and able to work independently on the owned unitPay & BenefitsAt Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $181,100 and $318,400, and your base pay will depend on your skills, qualifications, experience, and location.Apple employees also have the opportunity to become an Apple shareholder through participation in Apple's discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple's Employee Stock Purchase Plan. You'll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses - including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits.Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant.