Software Engineer, Agent Infrastructure

Openai
San Francisco, CA

About the Team

The Agent Infrastructure team at OpenAI designs robust and secure systems that power the training and advanced use cases of next-gen AI models at OpenAI. Our systems are a key component of the infrastructure that makes advanced reasoning models like OpenAI’s o1 models possible, and we work hand-in-hand with researchers to train these advanced models.

More advanced reasoning models have the capacity to solve hard problems, and our team is also building the platform on which AI models are able to interact with the world and perform actions. We develop secure environments that allow AI models to write and execute code in secure environments, empowering the next significant milestone in AGI development: The deployment of advanced AI agents.

About the Role

On the Agent Infrastructure team, you will play a crucial role in designing and maintaining robust and secure systems that facilitate the training of next-gen AI models at a massive scale. You will work closely with researchers to enhance system capabilities and support experimental and production workloads. In addition, you will work directly on the systems that form the operating system for AI agents: building systems that allow models to write and execute code, interact with external systems, and take actions in secure environments. We’re looking for people with deep experience building AI infrastructure and who are used to working closely with researchers to build high-performance systems at massive scale for specialized use cases.

This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees.

In this role, you will:

  • Push massive compute clusters to their limits. You will oversee the development and performance of extremely high-scale Kubernetes clusters, ensuring reliability and high throughput.

  • Use Terraform to stand up and evolve complex infrastructure that powers RL training and advanced model use cases.

  • Collaborate with research teams to stand up and optimize systems for novel AI training runs and experimental applications.

  • Develop and maintain FastAPI and gRPC APIs that serve as the interface for our large-scale AI computing environment, used in both training and inference.

You might thrive in this role if you have:

  • Willingness to leave no stone unturned in pursuit of solving a problem.

  • Experience building backend infrastructure that is easy to maintain.

  • Experience building products that end users interface with.

  • Experience making things go fast (Most things start in Python, but we expect we’ll increasingly move towards Rust for more robust performance).

Nice to have:

  • Are a team player, willing to do a variety of tasks that move the team forward.

  • Have experience working on large-scale Machine Learning infrastructure and distributed systems.

  • Know how to reason about training at scale, identifying bottlenecks and engineering solutions to optimize system performance in training environments.

  • Know your way around cloud platforms and work with infrastructure-as-code tech like Terraform.

  • Have mastered more than multiple programming languages and feel comfortable spinning up new services from scratch.

About OpenAI

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity.

We are an equal opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or any other legally protected status.

For US Based Candidates: Pursuant to the San Francisco Fair Chance Ordinance, we will consider qualified applicants with arrest and conviction records.

We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link .

At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.

Posted 2025-11-28

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