ChatGPT Performance Engineer

The role

You will optimize the performance, reliability, and efficiency of systems like ChatGPT and the OpenAI API. This role involves root-cause analysis, profiling, and architecture-level improvements across the stack.

What you will do

• Analyze and optimize performance across application, middleware, runtime, and infrastructure layers.
• Develop tooling and metrics for deep observability into system performance.
• Collaborate with infra, platform, training, and product teams to drive systemic improvements.
• Influence architecture and design decisions to prioritize latency, throughput, and efficiency.
• Lead investigations into high-impact performance regressions or scalability issues in production.
• Drive performance testing strategies and help define SLAs/SLOs.

Required qualifications

• 7+ years of experience in software engineering with a track record in performance or reliability of high-scale distributed systems.
• Deeply comfortable with performance profiling tools and tracing systems.
• Experience optimizing performance across one or more layers of the stack (e.g., database, networking, storage, application runtime, GC tuning, Python/Golang internals, GPU utilization).
• Strong understanding of OS internals, scheduling, memory management, and IO patterns.
• Contributed to observability, benchmarking, or performance-focused infrastructure at scale.
• Demonstrated success navigating ambiguity and aligning stakeholders around performance goals.

About the company

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. They bring technology to the world through products like ChatGPT and the OpenAI API.