Senior Software Engineer, Infrastructure

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 systems that empower other builders across the company. About the Role As a Senior Infrastructure Engineer on the Statsig team, you will build and scale the foundational infrastructure that powers OpenAI’s experimentation and rollout tools. You’ll work on the distributed systems that deliver configuration decisions in real time, ingest massive volumes of experimentation data, and power analytics that help teams understand how product and model changes perform in production. This role is deeply technical and focuses on performance, scalability, and reliability at extreme scale. You will design systems that support billions of feature evaluations, operate with strict latency requirements, and provide the data foundation for experimentation across OpenAI’s product ecosystem. In this role, you will: Design and operate low-latency configuration delivery systems powering progressive rollouts across OpenAI’s product suites. Build highly scalable data ingestion and analytics infrastructure to support experimentation, product analytics, and feature performance monitoring. Improve the performance, efficiency, and reliability of Statsig’s core infrastructure, ensuring systems remain fast and stable as OpenAI’s products scale globally. Optimize query performance and data availability for experimentation and analytics workflows used by teams across OpenAI. Lead large technical initiatives and shape the architecture of experimentation and rollout infrastructure used across the company. You might thrive in this role if you: Have experience building large-scale distributed systems with strict performance and reliability requirements. Enjoy solving low-latency systems problems, such as real-time configuration delivery, high-throughput ingestion pipelines, or large-scale analytics systems. Have experience building and optimizing large-scale data platforms, event pipelines, etc. Care deeply about system reliability, observability, and operational excellence in production environments. Take ownership of complex technical problems end-to-end and enjoy building infrastructure that enables other teams to move faster. 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. Compensation $293K – $325K • Offers Equity The base pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. If the role is non-exempt, overtime pay will be provided consistent with applicable laws. In addition to the salary range listed above, total compensation also includes generous equity, performance-related bonus(es) for eligible employees, and the following benefits. Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit) 401(k) retirement plan with employer match Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks) Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time (1 hour per 30 hours worked, or more, as required by applicable state or local law) Mental health and wellness support Employer-paid basic life and disability coverage Annual learning and development stipend to fuel your professional growth Daily meals in our offices, and meal delivery credits as eligible Relocation support for eligible employees Additional taxable fringe benefits, such as charitable donation matching and wellness stipends, may also be provided. More details about our benefits are available to candidates during the hiring process. This role is at-will and OpenAI reserves the right to modify base pay and other compensation components at any time based on individual performance, team or company results, or market conditions. Equal Opportunity 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. Background Checks 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. Accommodations We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this. #J-18808-Ljbffr