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Software Engineer, Codex Core Agents

OpenAI

Locations
San Francisco, California, United States · New York, United States · Seattle, Washington, United States · London, Greater London, United Kingdom
Department
Applied AI
Employment type
Full-time
Salary
$230,000–$385,000 / year
Posted
6 months ago (Mar 26, 2026)

About the TeamThe Codex Core Agent team builds the kernel of Codex. We own making the agent better, accelerating research, and making those improvements real in production for our users.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…

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