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Lead the Wikidata Platform team, overseeing the development of the Wikidata Query Service, ensuring reliable query infrastructure, and fostering an inclusive engineering culture while collaborating cross-functionally.

As a Staff Database Administrator, you will oversee the health and performance of MariaDB and MySQL systems, optimize database queries, implement replication topologies, and support Wikimedia's technology infrastructure.

The Senior Data Scientist will build data systems, identify actionable insights, maintain data dashboards, and collaborate across departments to support Wikimedia's Community Growth initiatives with data-informed decision-making.

The Senior Major Gift Officer manages a portfolio of major gift prospects, cultivates donor relationships, and executes major fundraising strategies to secure major and planned gifts for the Wikimedia Foundation.

The role involves coordinating scholarships and volunteer activities for the Wikimania 2026 event, facilitating communication with scholars, and supporting event operations.

The Senior Major Gift Officer raises major and planned gifts for the Wikimedia Foundation, manages donor relationships, and develops fundraising strategies. Responsibilities include soliciting major gifts, coordinating donor events, and creating fundraising materials while maintaining donor confidentiality.

The Senior Data Scientist will build data systems, dashboards, and insights to support the Wikimedia Foundation's Community Growth team in grantmaking and strategic planning.

The Senior Major Gift Officer will manage a portfolio of major gift prospects, execute fundraising strategies, cultivate relationships, and create donor communications while traveling frequently to meet with donors.

The Senior Major Gift Officer leads fundraising efforts for major and planned gifts at the Wikimedia Foundation, managing a portfolio of 75-100 prospects and developing donor relationships while ensuring annual revenue targets are met.

The Staff Database Administrator ensures the health and performance of Wikimedia's production relational databases, manages replication topologies, optimizes queries, and supports high availability for technology behind Wikipedia. He or she participates in on-call rotation and collaborates with a globally distributed team.