mid Data Scientist ic · Posted May 15, 2026

About this role

OpenAI is hiring a mid-level Data Scientist based in London, United Kingdom. The posting calls out experience with Python, SQL, Machine Learning, A/B Testing.

Role
Data Scientist
Function
data engineering
Level
mid
Track
Individual contributor
Employment
Full-time
Location
London, United Kingdom
Department
Trust & Safety
Posted
May 15, 2026

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Job description

from OpenAI careers

About the Team

OpenAI’s Safety teams work to ensure our products are safe, trusted, and resilient as frontier AI systems scale globally. We tackle some of the company’s most important challenges across understanding and preventing misuse and misalignment, intercepting fraud and abuse, and protecting vulnerable users.

We are hiring Data Scientists to help build the analytical foundations that allow OpenAI to deploy increasingly capable AI responsibly.

This is a high-impact role operating at the intersection of product, safety, policy, and research.

 

About the Role

As a Data Scientist, Safety, you will help solve complex and ambiguous problems where rigorous analysis directly informs critical decisions.

Depending on your background and team alignment, you may work on areas such as:

  • Measure harmful or abusive behavior across OpenAI’s products

  • Detect fraud, manipulation, coordinated misuse

  • Evaluate and improve safety classifiers, rules systems, mitigation systems, and human review workflows

  • Design experiments and causal analyses to understand product, policy, and mitigation impacts

  • Build prevalence estimators, dashboards, monitoring systems, and executive decision frameworks

  • Diagnose gaps in safety and integrity systems using behavioral and product data, and help quantify and navigate false positive / false negative tradeoffs

  • Translate ambiguous safety risks into measurable problems and evidence-based recommendations

  • Partner with Product, Engineering, Policy, Research, and Operations teams to improve safety outcomes

    This is an excerpt. Read the full job description on OpenAI careers →
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