OpenAI

Software Engineer, Cloud Infrastructure at OpenAI (London, United Kingdom)

OpenAI· London, United Kingdom·

Role details

Employment
Full-Time
Skills
KubernetesCloud PlatformsOrchestration Systems

OpenAI at a glance

Builds frontier AI models and ships them as consumer, developer, and enterprise products — ChatGPT, the API platform, and Codex.

Builds frontier AI models and ships them as consumer, developer, and enterprise products (ChatGPT, the OpenAI API platform, Codex, and an agent layer).

~$180B raised · latest: $122B round at an $852B valuation (2026) · backed by Microsoft, Amazon, NVIDIA, SoftBank

Summary

Design and build scalable, reliable, and secure cloud infrastructure abstractions to support OpenAI's products like ChatGPT. The role involves maintaining Kubernetes clusters, networking stacks, and deployment systems while ensuring system reliability and responding to critical incidents.

Job description

About the Team

The Applications Engineering team works across research, engineering, product, and design to bring OpenAI’s technology to consumers and businesses. You’ll join the team responsible for running the core infrastructure that supports products like ChatGPT and the API. The systems we support include our kubernetes clusters, infrastructure deployment, our networking stack, cloud abstractions, and more. We seek to learn from deployment and distribute the benefits of AI, while ensuring that this powerful tool is used responsibly and safely. Safety is more important to us than unfettered growth.

About the Role

The cloud infrastructure team builds and maintains infrastructure abstractions allowing OpenAI to ship products quickly and scalably.

In this role, you will:

  • Design and build the development and production platforms that power our products, enabling reliability and security at scale
  • Ensure our infrastructure can scale to the next order of magnitude
  • Help create a diverse, equitable, and inclusive culture that makes all feel welcome while enabling radical candor and the challenging of group think
  • Like all other teams, we are responsible for the reliability of the systems we build. This includes an on-call rotation to respond to critical incidents as needed.

You might thrive in this role if you:

  • Have 5+ years building core infrastructure
  • Have experience operating orchestration systems such as Kubernetes at scale
  • Have experience building abstractions over cloud platforms
  • Take pride in building and operating scalable, reliable, secure systems
  • Are comfortable with ambiguity and rapid change

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 we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. For additional information, please see OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement. 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. To notify OpenAI that you believe this job posting is non-compliant, please submit a report through this form. No response will be provided to inquiries unrelated to job posting compliance. We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link. OpenAI Global Applicant Privacy Policy 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.

Why work at OpenAI

  • Culture & values: OpenAI’s stated values include “Humanity first,” “Act with humility,” “Feel the AGI,” and “Ship joy.” Operating principles emphasize agency, creativity, rapid iteration, and intense focus.
  • Benefits: Competitive health insurance, mental healthcare support, 24-week paid birth-parent leave (plus 20 weeks for other parents), generous PTO, annual learning & development stipend, daily meals (breakfast, lunch, dinner), and a domestic conference budget.
  • Work environment: Hybrid/office-based (San Francisco headquarters). The company offers a residency program for researchers and engineers transitioning into AI.
  • Impact: Employees work directly on frontier AI models that shape the industry and society. The mission-driven nature attracts talent passionate about AGI’s societal implications.

Application questions