AI Infrastructure Performance Modeler

OpenAI; California (MO); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Relocation assistance

Hybrid work model

Office in San Francisco

Job summary

OpenAI in San Francisco, CA is seeking a Performance Modeling Engineer to develop and apply modeling tools for AI system performance. You will collaborate with Senior engineers to run simulations, analyze tradeoffs, and guide architecture decisions.

This role targets early-career engineers with 1–2 years of experience, offering a hybrid work model with relocation assistance and strong growth in large-scale infrastructure and AI workloads.

Qualifications

• 1–2 years of experience in software engineering, systems modeling, performance analysis, or related technical work.
• Strong programming skills and experience building tools, scripts, or frameworks.
• Familiarity with system architecture fundamentals such as compute, memory, and networking.

Responsibilities

• Support the development and maintenance of performance modeling tools and frameworks.
• Assist in building models to evaluate system behavior across compute, memory, networking, and interconnect subsystems.
• Run simulations and analytical models to support architecture and infrastructure decisions.
• Collaborate with senior engineers to evaluate design tradeoffs across hardware and system components.
• Interpret modeling outputs and translate findings into clear recommendations.
• Validate models using benchmarking data and real system performance measurements.

Skills

Programming

Systems modeling

Performance analysis

Scripting

Team collaboration

Tools

Python

Shell scripting

Modeling tools

Job description

OpenAI in San Francisco, CA is seeking a Performance Modeling Engineer to develop and apply modeling tools for AI system performance. You will collaborate with Senior engineers to run simulations, analyze tradeoffs, and guide architecture decisions.

This role targets early-career engineers with 1–2 years of experience, offering a hybrid work model with relocation assistance and strong growth in large-scale infrastructure and AI workloads.