Staff Data Scientist — Core Experimentation Platform

Rebash; Bellevue (WA); Hybrid; USD 293,000 - 325,000; Full time

Job summary

OpenAI in Bellevue is hiring a Staff-level Data Scientist to lead the evolution of our core experimentation platform. You will improve statistical rigor, reliability, and practical usability across teams and scale, addressing deep issues like variance reduction, bias mitigation, and sequential testing.

You will craft robust analytical systems in Python, collaborate with engineers, and mentor other data scientists while shaping best practices for governance and interpretation of results in a

Qualifications

• Experience building, scaling, or operating experimentation platforms at a large technology company.
• Deep expertise in statistics, causal inference, and online experimentation methodology.
• Strong coding and systems skills in Python and Spark.

Responsibilities

• Drive the statistical direction and technical strategy for OpenAI’s experimentation platform.
• Design and improve experimentation methodologies used across product and research teams.
• Lead investigations into complex experimentation anomalies and measurement failures.
• Mentor other data scientists and raising the overall technical bar for experimentation and causal inference.

Skills

Statistics

Causal inference

Experimentation methodology

Python

Tools

Python

Spark

Job description

OpenAI in Bellevue is hiring a Staff-level Data Scientist to lead the evolution of our core experimentation platform. You will improve statistical rigor, reliability, and practical usability across teams and scale, addressing deep issues like variance reduction, bias mitigation, and sequential testing.

You will craft robust analytical systems in Python, collaborate with engineers, and mentor other data scientists while shaping best practices for governance and interpretation of results in a