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GPU Compiler Backend Engineer

Apple· Software and Services
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Cupertino, California$150.4k - $277.6kfull-timePosted 2mo ago

About the role

Design, implement, and productize advanced backend compiler optimizations for Apple Silicon GPUs, collaborating with GPU architects and cross-functional teams to explore ISA/micro-architecture proposals, bring up compiler support for future architectures, and ship an LLVM-based GPU compiler backend across Apple devices.

Responsibilities

  • Design, implement, and productize backend compiler optimizations for Apple Silicon GPUs
  • Independently investigate and resolve complex, open-ended performance and correctness issues affecting key partner teams
  • Partner with architects and micro-architects to co-design instruction set and micro-architecture features: build compiler prototypes, run experiments, and use the results to influence hardware design decisions before they are locked
  • Bring up and validate compiler support for future GPU architectures on simulators and pre-silicon platform
  • Model and quantify the performance impact of proposed hardware features on representative graphics, gaming, and ML workloads, and communicate trade-offs to hardware and software stakeholders
  • Stay current with compiler technology advancements and apply relevant insights to our development process
  • Mentor and collaborate with fellow engineers across the team
  • Hands-on experience developing LLVM-based compiler backends
  • Experience with instruction selection, instruction schedulers, and register allocators for CPU or GPU compiler backends
  • Experience bringing up a compiler for a new or unreleased architecture, or working with instruction set definitions, simulators, or emulation environments
  • Experience collaborating with hardware architects on ISA or micro-architecture design, including performance modeling and analysis of proposed features
  • Experience driving production compiler issues to resolution in a fast-paced environment

Qualifications

  • Experience with modern C++ programming
  • BS with 3+ years experience, MS, or PhD in computer science or related field
  • Strong background in compiler backend technologies (LLVM preferred)
  • Knowledge of GPU architectures and how they differ from CPU architectures
  • Demonstrated autonomy and ownership resolving ambiguous, open-ended technical challenges
  • Excellent written and verbal communication skills
  • Hands-on experience developing LLVM-based compiler backends
  • Experience with instruction selection, instruction schedulers, and register allocators for CPU or GPU compiler backends
  • Experience bringing up a compiler for a new or unreleased architecture, or working with instruction set definitions, simulators, or emulation environments
  • Experience collaborating with hardware architects on ISA or micro-architecture design, including performance modeling and analysis of proposed features
  • Experience driving production compiler issues to resolution in a fast-paced environment

Skills

Required:Modern C++LLVMCompiler backendGPU architecturesISA/micro-architecture collaborationCommunication
Nice to have:Performance modeling

Benefits

  • Comprehensive medical and dental coverage
  • retirement benefits
  • discounted products and free services
  • reimbursement for certain educational expenses — including tuition
  • discretionary bonuses or commission payments and relocation eligibility
  • Apple stock programs including discretionary restricted stock units and Employee Stock Purchase Plan
Last updated Aug 28, 2026. Interested? Apply on the company site.

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