{"title": "Sr. GPU Compiler Backend Engineer", "summary": "As a member of the Apple Silicon GPU Compiler Backend Performance Team, you\u2019ll implement improvements to the open-source LLVM mid-level optimizer as well as our LLVM-based machine-dependent code generator for the Apple GPU architecture.", "description": "The Apple GPU architecture is part of the silicon that powers macOS, iOS, iPadOS, tvOS, and watchOS devices. The work we do has direct impact on the billions of Apple devices shipped to date. We work with many different organizations within Apple \u2013 hardware architecture, silicon engineering, device drivers, application frameworks, and the Xcode developer tools. This kind of collaboration and cross-functional reach allows our team to influence the hardware architecture and software stack. We're part of delivering phenomenal performance, functionality, and robustness for all graphics shaders and compute kernels that run on Apple GPUs. Our team is focused on improving the end-user experience by maximizing the execution speed of the code generated for Apple GPUs while minimizing energy consumption. We are enabling new GPU architectures, technologies, and applications through innovation in compilers.", "key_qualifications": "The ability to communicate clearly and effectively, especially with people less technically proficient in the areas you\u2019ve gained expertise in; An inclination toward collaborative approaches to solving complex problems; Experience writing C++ code in a modern style; Hands-on experience developing LLVM-based compiler backends (e.g. instruction selection, instruction scheduling, register allocation); Experience with instruction selection with either LLVM\u2019s SelectionDAG or GlobalISel; Experience implementing SSA-based optimization passes", "preferred_qualifications": "Experience implementing or improving instruction schedulers and register allocators for CPU or GPU compiler backends; Knowledge of GPU architectures and how they differ from CPU architectures", "education_experience": "", "additional_requirements": "", "pay_benefits": "At 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 $175,800 and $312,200, 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\u2019s 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\u2019s Employee Stock Purchase Plan. You\u2019ll 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 \u2014 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.", "company": "apple"}