OpenAI

ChatGPT Performance Engineer

San Francisco, CA, USA

Senior

ON SITE

OpenAI is hiring a Performance Engineer to scale the performance, reliability, and efficiency of systems powering ChatGPT and the OpenAI API. This is a senior individual contributor role focused on root-cause analysis, profiling, instrumentation, and architecture-level performance improvements across application, middleware, runtime, and infrastructure layers. You will collaborate cross-functionally with infra, platform, training, and product teams to drive measurable improvements in latency, throughput, and cost-efficiency at scale.

Performance profiling

Distributed systems

Observability and instrumentation

Latency and throughput optimization

OS internals

Memory management

Networking optimization

Storage optimization

Python runtime optimization

Benchmarking

SLA/SLO definition

Root-cause analysis

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