Machine Learning Engineer, Core Experimentation

About the role

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. The Statsig team within OpenAI builds the experimentation, feature rollout, dynamic configuration, and analytics systems that help OpenAI ship products with speed, safety, and evidence. Our work sits on the critical path for how product, engineering, research, and go-to-market teams learn from real-world usage and make high-confidence decisions.

Responsibilities

• Set and execute the technical roadmap for Generative Insights and Predictive Experimentation from early prototypes through production adoption.
• Build cross-experiment learning systems that retrieve and synthesize historical experiments to detect recurring effects and generate hypotheses with clear evidence.
• Develop predictive models and simulation workflows to estimate likely impact and uncertainty before a full live experiment while establishing rigorous evaluation through backtests and calibration.