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Applied AI Engineer, Codex Core Agent

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

In inglese

Company

OpenAI

Location

San Francisco; New York City; Seattle; London, UK

Status

Open

Posted

2026-03-26T17:15:00.749+00:00

OpenAI's Codex Core Agent team is hiring applied AI engineers to make Codex agents dependable on real software engineering tasks. The work covers agent behavior design, long-horizon coding workflows, evals for regressions and failure modes, prompting, tool-use and context construction, production failure analysis, and data feedback loops into research. The posting asks for experience shipping ML or LLM products, strong Python and modern ML tooling, and work on evaluation, fine-tuning or prompt design. The role sits between research, infrastructure and product.