Software Engineer, CI/CD & ML Infrastructure

The posting, as OpenAI wrote it

About the Team

OpenAI’s Hardware organization develops AI-native silicon and system-level solutions for the unique demands of advanced AI workloads. Building on efforts like Jalapeño, the team is developing future generations of AI-native silicon and tightly integrated systems to power the next generation of frontier models. By co-designing chips, systems, tools, and methodologies, the team helps deliver faster, more efficient, and production-ready hardware for OpenAI’s supercomputing platform.

About the Role

You will define and build the CI/CD systems that qualify frontier models and the software stack running on OpenAI’s custom AI accelerators. Your work will make correctness, performance, and stability measurable on every change, from individual commits through production releases.

This role spans model workloads, accelerator software, systems infrastructure, and developer productivity. You will establish scalable CI/CD, GitOps, and monorepo practices; design trustworthy regression and benchmarking pipelines; and partner with model, compiler, kernel, runtime, firmware, and hardware teams to shorten feedback loops without compromising production readiness.

In this role, you will

• Define the model CI strategy for frontier models running on OpenAI custom silicon and integrated accelerator systems.
• Build production CI/CD pipelines for functional regression, performance benchmarking, software stability, and release qualification.
• Design representative test matrices across models, configurations, hardware generations, software components, and deployment environments.
• Create reliable performance baselines, regression detection, bisect and triage workflows, and clear ownership for failures.
• Establish GitOps practices for reproducible configuration, promotion, rollback, auditability, and environment consistency.
• Shape monorepo architecture, dependency management, build and test boundaries, change validation, and developer workflows at scale.
• Develop scalable orchestration, artifact management, caching, scheduling, observability, and capacity controls for accelerator-backed CI.
• Partner with model, compiler, kernel, runtime, firmware, validation, and hardware teams to translate release risks into automated gates.
• Improve CI reliability, speed, debuggability, and cost efficiency while maintaining high confidence in production software.

You might thrive in this role if

• Have built or operated large-scale CI/CD, developer infrastructure, test automation, or production engineering systems.
• Understand modern software delivery practices, including GitOps, release promotion, rollback, reproducibility, and policy-driven automation.
• Have experience designing monorepos, build systems, dependency graphs, test selection, or change-impact analysis.
• Can design regression and performance-benchmarking systems with stable baselines, useful metrics, and actionable failure diagnosis.
• Are proficient in Pytho

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Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. For unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In addition, job duties require access to secure and protected information technology systems and related data security obligations.

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