Performance Modeling Engineer (Level 2)

Stack

Responsibilities

• ▹Support development and maintenance of performance modeling tools and frameworks
• ▹Help build models evaluating system behavior across compute, memory, networking, and interconnect subsystems
• ▹Help analyze distributed system scaling behavior and identify bottlenecks
• ▹Run simulations and analytical models to support architecture and infrastructure decisions
• ▹Partner with senior engineers to evaluate design tradeoffs
• ▹Interpret modeling outputs and translate findings into clear recommendations
• ▹Validate models using benchmarking data and real system measurements
• ▹Improve modeling workflows, documentation, and usability

Requirements

• ▹1-2 years of experience in software engineering, systems modeling, performance analysis, or related technical work
• ▹Strong programming skills and experience building technical tools, scripts, or frameworks
• ▹Familiarity with system architecture fundamentals such as compute, memory, and networking
• ▹Ability to reason about system performance, bottlenecks, and scaling behavior
• ▹Strong analytical and problem-solving skills in quantitative environments
• ▹Ability to learn quickly and work effectively across technical teams

Nice to have

• ▹Exposure to AI/ML workloads, distributed systems, or large-scale infrastructure
• ▹Experience with simulation tools, benchmarking, profiling, or performance analysis
• ▹Familiarity with data center systems, server architecture, or hardware platforms
• ▹Interest in system architecture and hardware/software co-design
• ▹Internship or early professional experience in performance engineering or infrastructure

About the company

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. As an equal-opportunity employer, it pushes the boundaries of AI capabilities while keeping safety and human needs at the core of its work, and values the diverse perspectives and experiences that reflect the full spectrum of humanity.