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Machine Learning Engineer, Core Experimentation

About the TeamThe 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 h

Company

OpenAI

Location

Seattle

Status

Open

Posted

2026-09-24T20:40:14.837+00:00

OpenAI's Statsig team seeks a machine learning engineer to lead technical direction for ML-powered experimentation and insights. The role is 0-to-1 and spans predictive modeling, retrieval and LLM systems, simulation, causal inference, datasets, evaluation, and production services. The engineer will build systems that estimate experiment impact, retrieve historical experiments, and support approval-gated decisions. The posting asks for hands-on production ML experience, Python, statistics, and depth in areas such as LLM/retrieval, ranking, forecasting, causal ML, or simulation. Work is hybrid in Seattle/Bellevue.