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AI Agent Systems Engineer — Build Reliable Harnesses

OpenAI

OpenAI is seeking an AI Systems Engineer for Codex Core Agents to design and build the core agent harness and execution loop. You will enable Codex agents to interpret model outputs, use tools, execute code, and complete long-horizon tasks safely in real environments. You will work across Rust systems code and Python configuration layers, focusing on reliability, safety, and performance. This role involves collaboration with research, infrastructure, and product to push frontier agent #J-18808-Ljbffr OpenAI

Vacancy posted 3 days ago
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