The opportunity
OpenAI’s Hardware organization develops system and infrastructure solutions designed for the unique demands of advanced AI workloads. We work closely with architecture, infrastructure, and vendor teams to evaluate system performance and guide critical design decisions.
What you'll do
Develop and maintain performance modeling tools and frameworks.
Build models to evaluate system behavior across: compute, memory, and interconnect subsystems
distributed system scaling and bottlenecks.
Run simulations and analytical models to support architectural tradeoff analysis.
Collaborate with performance modeling lead and system architects to answer forward-looking design questions.
Analyze and interpret modeling outputs, translating results into actionable insights.
What they're looking for
- Validate models against real system measurements and workload behavior.
- Contribute to improving modeling fidelity, usability, and scalability.
- Strong software engineering or modeling background (e.g., simulation, systems: modeling, or performance analysis).
- Familiarity with system architecture fundamentals (compute, memory, networking).
