OpenAI
AI Infrastructure Engineer, pAGI
$266K–$500K
San Francisco · Hybrid · Full-time · Posted Sep 14, 2026
About the job
Build and operate infrastructure that makes large-scale AI training and evaluation more reliable, efficient, and easier for researchers to run.
What you'll do
- Build and operate training and evaluation infrastructure, improving reliability, throughput, and resource efficiency.
- Develop shared inference and grading platforms, and improve compute scheduling and resource allocation.
- Diagnose performance bottlenecks and build self-service tools, automated validation, and observability.
What they ask for
- Strong software engineering fundamentals.
- Experience building or operating large-scale distributed systems.
- Experience in ML infrastructure, inference systems, GPU performance, or infrastructure tooling.
Pay
$266K – $500K (base salary)
AI focus
Build infrastructure for AI model training, evaluation, inference, and grading; improve GPU utilization and research workflows.
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