Software Engineer, API SDK

Our team brings OpenAI's most capable technology to the world through our developer platform: the OpenAI API. As the leading AI development platform, our API is used by millions of developers and the majority of enterprises around the world, and powers the majority of AI applications that you may use on a daily basis. The platform supports everything from simple model calls to stateful, multimodal, tool-using applications through the Responses API, Agents SDK, Realtime API, and more. Our SDKs turn that fast-moving platform into reliable, idiomatic developer experiences across languages., We are looking for a software engineer to help build the official SDKs that power the OpenAI API. Currently offered in Python, Node.js, Golang, Java, and Ruby - our SDKs are some of the most popular in the world. You will help shape the developer experience for all new API features, as well as all future versions of our APIs. We are looking for engineers who will sweat the details about SDK design, who love building for AI developers, and who believe in the potential for AI to transform the world for the better. Prior experience building SDKs is lovely, but not absolutely necessary., * Define and implement the SDK experience for all new API features, as well as all future versions of our API.

• Build and maintain our systems to make SDK maintenance and generation streamlined and automated.
• Contribute to our SDK strategy and roadmap, including which languages to support and what features to support.
• Collaborate closely with the rest of the API team, our Developer Experience team, and our GTM team to make our SDKs the best in the world.
• Work directly with developers adding features, fixing issues, and contributing to documentation.

• 7+ years of professional engineering experience (excluding internships) in relevant roles at tech and product-driven companies

• You love building for other developers, and thrive on feedback from opinionated users

• You thrive working in the open source community, and love engaging directly with developers

• You can thrive and operate independently in a fast-paced environment with ambiguous requirements and goals

• You are an engineer at heart, but are willing to lean into product decisions

• You have previous experience maintaining SDKs or building SDK generation software

$293K - $385K medical insurance, dental insurance, vision insurance, parental leave, paid time off, paid holidays, 401(k), retirement plan United States, Washington, Seattle May 23, 2026

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., 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.