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OpenAI Logo OpenAI · IT - Software Development

Software Engineer, Agent Infrastructure

United States, San Francisco 230000.00 - 385000.00 USD / Year · Job Posted February 21, 2026
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Job Description

The Agent Infrastructure team at OpenAI is responsible for building systems that enable training and deployment of highly useful AI agents, both internally and for the world. We work hand-in-hand with researchers to design and scale the environment in which agentic models are trained – providing a workspace for AI models to execute code, debug issues, and develop software just as human SWEs do. Our training environment for agentic models operates at an extremely high scale and has the flexibility to emulate any environment in which an agent might work. At the same time, our team builds and maintains OpenAI’s core platform for the deployment and execution of agents in production. Our systems power products such as Codex, Operator, tool use in ChatGPT, and future agentic products.

Job Responsibility

  • Push massive compute clusters to their limits as a core contributor to a novel container orchestration platform
  • Develop and maintain FastAPI and gRPC APIs that serve as the interface for agentic infrastructure used in training and production
  • Use Terraform to stand up and evolve complex infrastructure for both research and production
  • Collaborate with research teams to stand up and optimize systems for novel AI training runs and experimental applications
  • Build and scale systems to train highly capable agentic models
  • Build the platform and integrations to launch new agents to hundreds of millions of users worldwide

Requirements

  • Deep experience working on large-scale machine learning infrastructure
  • Ability to reason about training at scale, identifying bottlenecks and engineering solutions to optimize system performance
  • Experience building new things from 0-1 quickly and scaling them 1,000,000x
  • Keen eye for performance and optimization of complex, globally-distributed systems
  • Knowledge of cloud platforms and infrastructure-as-code tech like Terraform
  • Driven by solving complex, ambiguous problems at the intersection of infrastructure scalability, virtualization efficiency, and agentic capabilities
  • Deep technical expertise in virtualization and containerization technologies (e.g. Kata, Firecracker, gVisor, Sysbox)
  • Passion for optimizing runtime performance

What we offer

  • Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts
  • Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)
  • 401(k) retirement plan with employer match
  • Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)
  • Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees
  • 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time
  • Mental health and wellness support
  • Employer-paid basic life and disability coverage
  • Annual learning and development stipend
  • Daily meals in our offices, and meal delivery credits as eligible
  • Relocation support for eligible employees
  • Charitable donation matching and wellness stipends
  • Offers Equity
  • Performance-related bonus(es) for eligible employees
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