Applied AI Engineer, Codex Core Agent

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San Francisco Full-time$230k–$385k / year Posted 30+ days ago

Above market. This role pays above the $231k median for similar USD roles (129 comparable postings in our corpus).

That means working across the systems that make Codex actually function as an agent in the real world: the production performance envelope around tokens, latency, reliability, cost, and capacity; the core execution loop and interfaces that turn models into useful behavior; the shared infrastructure that enables other teams to build on Codex; and the feedback loops that turn real-world usage into better models and better agent behavior over time. You’ll work closely with research, infrastructure, and product to ensure agents are not just powerful, but useful, steerable, and reliable in…

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