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ML Research Engineer - Hardware Codesign

United States, San Francisco 185000.00 - 455000.00 USD / Year · Job Posted February 21, 2026
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Job Description

OpenAI’s Hardware organization develops silicon and system-level solutions designed for the unique demands of advanced AI workloads. The team is responsible for building the next generation of AI silicon while working closely with software and research partners to co-design hardware tightly integrated with AI models.

Job Responsibility

  • Build on our roofline simulator to track evolving workloads
  • Debug gaps between performance simulation and real measurements
  • Write emulation kernels for low-precision numerics and lossy compression schemes
  • Prototype numerics modules by pushing RTL through synthesis
  • Proactively pull in new ML workloads and prototype them
  • Understand the whole picture from ML science to hardware optimization
  • Build ad-hoc collaborations across teams
  • Communicate design tradeoffs clearly

Requirements

  • Exceptional track record of high-quality technical output
  • Strong Python, and C++ or Rust
  • Experience writing Triton, CUDA, or similar
  • Working knowledge of PyTorch or JAX
  • Practical understanding of floating point numerics and model quantization
  • Deep understanding of transformer models
  • Experience writing RTL (especially for floating point logic) and understanding of PPA tradeoffs is a plus
  • Strong cross-functional communication

Nice to have

Experience in large ML codebases is a plus

What we offer

  • Medical, dental, and vision insurance for you and your family
  • Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses
  • 401(k) retirement plan with employer match
  • Paid parental leave
  • Paid time off
  • 13+ paid company holidays
  • Mental health and wellness support
  • Employer-paid basic life and disability coverage
  • Annual learning and development stipend
  • Daily meals in our offices, and meal delivery credits
  • Relocation support
  • Charitable donation matching and wellness stipends
  • Offers Equity

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