Note: The job is a remote job and is open to candidates in USA. Wikimedia Foundation is a nonprofit organization that operates Wikipedia and other free knowledge projects. The Senior Data Scientist will bridge the gap between complex datasets and strategic action, providing leadership with insights into search recall gaps and emerging topic trends to inform Wikimedia's strategy for content visibility.
Responsibilities
- Integrating fragmented data from our internal data lake, BigQuery, Matomo, and external intelligence tools such as Ahrefs, Semrush, and Trakkr AI among others to create a unified, granular view of how users discover and use our content across desktop and mobile domains
- Translating analytics and complex trends by geography, project, and topic into actionable narratives that help leadership navigate uncertainty and prioritize high-impact interventions
- Developing automated systems to detect where our content is under-indexed or missing from results, providing the data necessary to improve article coverage, alternative titles, content for the Wikimedia Foundation’s websites, and FAQ structures
- Establishing the metrics and frameworks to track how our content is utilized within Large Language Models and generative search engines, directly informing high-level negotiations and the valuation of our Enterprise offerings, as well as driving grassroot donor growth
- Defining Measurable Outcomes: Collaborating with product leaders to set achievable goals and drafting the instrumentation requirements necessary to track success with technical precision
- Assessing the efficacy of new initiatives through the rigorous design and analysis of experiments (e.g., A/B testing) to understand their true impact on our global audience
- Interpreting website performance data to uncover insights, inform UX/UI enhancements, and support strategies aimed at improving customer experience and conversion outcomes on the Wikimedia Foundation’s websites
Skills
- Fluent in Python and Jupyter for data analysis, statistical modeling, simulation, visualization & reporting
- Fluent in SQL and working with large scale data using tools such as Hive, Presto, Druid, and Spark
- Experience with building dashboards & reports using tools such as Jupyter, Quarto, Superset
- A solid, intuitive understanding of how websites operate (including structure, user journeys, and tracking mechanisms), combined with practical expertise in web search SEO/GEO
- A Bachelor's degree + 5 years related experience or a Master's degree + 3 years related experience; or equivalent work experience
- Excellent communication skills
- You must possess the statistical nuance required to design experiments, identify statistically significant phenomena, and frame findings into clear, high-level narratives
- Comfortable working in a highly collaborative, remote environment
- Familiarity with Wikimedia projects, moderation processes, and communities
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