Full-Stack Platform Engineer, Experimentation & Rollouts

OpenAI; Washington; On-site; USD 160,000 - 210,000; Full time

Job summary

OpenAI's Statsig team in Bellevue is building the experimentation and rollout platform that enables OpenAI products to ship with speed, safety, and evidence. You will work across frontend, backend, SDK, data, and infrastructure to make complex workflows feel simple for teams delivering ChatGPT, Codex, and related services.

This full-time role emphasizes fast, reliable experimentation at scale, high-availability platform design, and a collaborative culture that values ownership and clear

Qualifications

• Strong full-stack engineering judgment and experience building platform-scale features.
• Ability to partner with product teams and translate launch workflows into durable platform features.
• Experience designing and implementing reliable SDK and server-side systems for high-scale services.
• Proven ability to collaborate with cross-functional teams across product, data, and infrastructure.

Responsibilities

• Build product experiences and platform capabilities for experimentation, feature flags, dynamic configuration, rollout safety, and analytics.
• Partner with product teams to understand launch workflows, measurement needs, and decision points, then turn insights into durable platform features.
• Improve SDK and server-side systems so experimentation and configuration are fast, reliable, and safe for high-scale OpenAI services.
• Help teams across ChatGPT, Codex, model measurement, ads, business subscriptions, developer products, and infrastructure use Statsig effectively.
• Design workflows that make it easier to create experiments, interpret results, monitor rollouts, and act quickly when a launch needs adjustment.
• Contribute to the technical direction of a platform that must support rapid adoption, high availability, and increasingly sophisticated product and model evaluation needs.
• Work from the Bellevue office with a team that values ownership, clear communication, and high-trust collaboration.

Skills

Full-stack engineering

Platform development

SDK familiarity

High-scale systems

Job description

OpenAI's Statsig team in Bellevue is building the experimentation and rollout platform that enables OpenAI products to ship with speed, safety, and evidence. You will work across frontend, backend, SDK, data, and infrastructure to make complex workflows feel simple for teams delivering ChatGPT, Codex, and related services.

This full-time role emphasizes fast, reliable experimentation at scale, high-availability platform design, and a collaborative culture that values ownership and clear