Engineer, Codex Core Agents — Scalable AI Agent Infra

OpenAI; Los Angeles (CA); On-site; USD 230,000 - 385,000; Full time

Job summary

A leading AI research organization is seeking a Software Engineer for its Codex Core Agents team. In this role, you will design and build the infrastructure that powers Codex agents, focusing on executing code safely and reliably. Ideal candidates have strong experience in distributed systems, infrastructure engineering, and tools like containers and CI/CD systems. You'll play a significant role in optimizing performance and ensuring the dependability of AI agents. Competitive salary and equity are offered.

Qualifications

• Strong experience in distributed systems or infrastructure engineering.
• Comfortable working across backend systems, APIs, and developer tooling.
• Experience with code execution platforms.

Responsibilities

• Design and build execution environments for AI agents.
• Develop systems for agent orchestration across workflows.
• Optimize tokens, latency, reliability, and cost across production fleet.

Skills

Distributed systems

Infrastructure engineering

System reliability

Performance optimization

Security engineering

Tools

CI/CD systems

Containers

Sandboxing

Virtualization

Job description

A leading AI research organization is seeking a Software Engineer for its Codex Core Agents team. In this role, you will design and build the infrastructure that powers Codex agents, focusing on executing code safely and reliably. Ideal candidates have strong experience in distributed systems, infrastructure engineering, and tools like containers and CI/CD systems. You'll play a significant role in optimizing performance and ensuring the dependability of AI agents. Competitive salary and equity are offered.