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Software Engineer, Codex Core Agents

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

2026-03-26T17:11:13.067+00:00

OpenAI's Codex Core Agent team builds the kernel of Codex, and this role is for engineers to build the infrastructure behind those agents in production. Work covers sandboxed execution environments, orchestration of multi-step tool-using workflows, state and memory systems for long-running tasks, model rollouts and capacity planning, and token, latency, reliability and cost optimisation across the fleet. The posting asks for strong distributed systems or infrastructure experience, ideally with containers, sandboxing or virtualisation, backend systems and APIs. Rust and LLM tool-use familiarity are listed as bonuses.