OpenAI
Software Engineer, API Agents
$266K–$445K
San Francisco · Full-time · Posted Oct 9, 2026
- Experience
- 7+ years of professional engineering experience, excluding internships, in relevant backend, infrastructure, platform, or product-driven engineering roles.
About the job
Build and operate backend systems and reusable infrastructure that enable AI agents to use context and tools, coordinate workflows, and act reliably and safely in production.
What you'll do
- Design and operate shared agent harness and backend infrastructure for long-running workflows.
- Build reusable capabilities for search, computer use, memory, tool execution, and multi-agent orchestration.
- Establish production foundations for safe execution, permissions, observability, evaluations, reliability, and efficiency.
What they ask for
- Exceptional backend engineering fundamentals and experience leading complex systems into reliable production services.
- Proficiency in one or more backend languages such as Python, Go, Rust, TypeScript, or similar.
- Strong systems design and operational judgment across relevant areas such as distributed systems, APIs, orchestration, or reliability.
- Strong ownership, developer empathy, communication, and ability to work across teams in a fast-moving environment.
Pay
$266K – $445K USD base salary
Tools
Python, Go, Rust, TypeScript
AI focus
Build production infrastructure and agent capabilities that turn model progress into dependable systems for completing real-world workflows; this is software and systems engineering rather than model training.
Model-written summary · the original posting is authoritative