Software Engineer, Full-Stack - Core Experimentation

About the Team The Statsig team within OpenAI is responsible for the core experimentation, rollout, and analytics infrastructure that powers every layer of OpenAI’s product development stack. Our systems enable teams across OpenAI to safely launch features, run experiments, and understand how product and model changes perform in the real world. Based out of OpenAI’s Bellevue office, we are a tight-knit team that values in-person collaboration, moving quickly with a strong bias toward impact, and building tools and systems that empower other builders across the company. About the Role As a Senior Product Engineer on the Statsig team, you will design and build the experimentation and rollout platform used by product and research teams across OpenAI. You’ll work on the core platform that allows engineers to safely launch new features, test ideas with users, and understand the impact of changes at global scale. This role sits at the intersection of product engineering and platform infrastructure. You’ll partner closely with teams across ChatGPT, the API, Growth, and Research to ensure that teams within OpenAI can move fast while maintaining strong experimentation practices and safe rollout mechanisms. In this role, you will: Design and build core experimentation and rollout infrastructure used by teams across OpenAI to launch and evaluate product and model changes safely. Develop systems for feature management, progressive rollouts, and canary deployments that allow engineers to ship quickly while minimizing risk to users. Partner directly with Data Science to enable scaled adoption of advanced statistical methodologies Partner with product, infrastructure, and research teams across the organization to integrate experimentation and rollout systems deeply into their product development lifecycle. Lead large technical initiatives, shaping the architecture and long-term evolution of OpenAI’s experimentation and launch infrastructure. You might thrive in this role if you: Have strong experience building internal tooling infrastructure, such as internal data or experimentation platforms, feature flagging systems, rollout tooling, or internal developer platforms. Enjoy working on systems that enable other engineers to move faster, and care deeply about developer experience and platform usability. Are comfortable designing and operating large-scale distributed systems that support high traffic products and rapid iteration cycles. Take ownership of complex technical problems end-to-end and enjoy driving architectural decisions that impact many teams. Thrive in fast-moving environments where ambiguity is high and the opportunity for impact is large. Location: This role is based in Bellevue, WA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees. 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.