Remote: Senior Data Scientist, Safety & Trust

Wikimedia Foundation; United States; On-site; USD 110,000 - 173,000; Full time

Job summary

Wikimedia Foundation is seeking a Senior Data Scientist, Safety & Security, to guide Wikipedia’s anti-abuse and security strategy. This remote role partners with product managers, engineers, and researchers to drive data-informed decisions that strengthen our platform.

The role involves developing measurement strategies, evaluating experiments with Bayesian and Frequentist methods, and building AI-driven data pipelines to support product decisions at scale.

Qualifications

• Experience with experimental design and statistics or machine learning methods.

Responsibilities

• Partner with product managers, engineers and designers to guide product decisions.
• Develop measurement strategy and analyze experiments using Bayesian and Frequentist methods.
• Instrument features and ensure data quality for A/B testing.
• Build self-service dashboards tracking product health using BI tools.
• Deliver timely, data-driven insights to stakeholders.

Skills

Statistical methods

Experimental design

Machine learning

Python

SQL

AI coding assistants

Tools

Hive

Presto

Druid

Spark

DBT

Airflow

Superset

Job description

Wikimedia Foundation is seeking a Senior Data Scientist, Safety & Security, to guide Wikipedia’s anti-abuse and security strategy. This remote role partners with product managers, engineers, and researchers to drive data-informed decisions that strengthen our platform.

The role involves developing measurement strategies, evaluating experiments with Bayesian and Frequentist methods, and building AI-driven data pipelines to support product decisions at scale.