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I have been contributing to the German and English Wikipedia since 2003, and also occasionally to other projects like Commons, Wikidata or de:wikisource.

I edit the monthly Wikimedia Research Newsletter (also published as a section of The Signpost on English Wikipedia), and am one of the curators of the associated @WikiResearch Twitter feed.

Other material about Wikipedia and related topics:

From 2011 to 2019 I worked for the Wikimedia Foundation, most recently as a senior data analyst.

Disclaimer: I worked for or provided services to the Wikimedia Foundation, but this is my personal account. Edits, statements, or other contributions made from this account are my own, and may not reflect the views of the Foundation.