GPU Performance and Functional Modeling Engineer **Austin, Texas, United States** **Hardware** **Summary** Posted: **Oct 09, 2025** Weekly Hours: **40** Role Number: **200624939-0157** Do you intrinsically see the importance in every detail? As part of our Silicon Technologies group, you’ll help design and manufacture our next-generation, high-performance, power-efficient GPU! You’ll ensure Apple products and services can seamlessly and expertly handle the tasks that make them beloved by millions. Joining this group means crafting and building the technology that fuels Apple’s devices. Together, we enable our customers to do all the things they love with their devices! In this team, we are passionate about writing code for performance modeling for GPUs and the performance model infrastructure. This includes working with architects and designers to understand the units being modeled. **Description** The GPU performance and functional modeling responsibilities include: - Model tasks required for the development and verification of graphics processing unit (GPU) design. - Create bit-accurate model for hardware verification. - Create performance model for performance analysis. - Design and implement GPU level verification API and tools. - Create automated flows for graphics core verification. - Support GPU hardware and software teams during model and design bring-up **Minimum Qualifications** + Bachelors or Masters Degree **Preferred Qualifications** + C/C++ programming. + CPU/GPU architecture. + Additional skills that are desired: + Cache Memory hierarchy. + Multiprocessor architecture and programming. + Workload performance analysis, tuning, and optimization. + SystemC, GPUSIM, GEM5, QEMU modeling infrastructure. + Metal, Vulcan, CUDA, OpenCL, or OpenGL programming languages. 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 (https://www.eeoc.gov/sites/default/files/2023-06/22-088\_EEOC\_KnowYourRights6.12ScreenRdr.pdf) . 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 (https://www.eeoc.gov/sites/default/files/2023-06/22-088\_EEOC\_KnowYourRights6.12ScreenRdr.pdf) . Apple will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation. Apple participates in the E-Verify program in certain locations as required by law.Learn more about the E-Verify program (https://www.apple.com/jobs/pdf/EverifyPosterEnglish.pdf) . Apple is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. Reasonable Accommodation and Drug Free Workplace policy Learn more . Apple is a drug-free workplace. Reasonable Accommodation and Drug Free Workplace policy Learn more . Apple will consider for employment all qualified applicants with criminal histories in a manner consistent with applicable law. If you’re applying for a position in San Francisco, review the San Francisco Fair Chance Ordinance guidelines applicable in your area. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.