We are the Software Development Department of Wikimedia Deutschland e.V. We create and maintain Open Source software that support Wikimedia projects such as Wikipedia and Wikidata. There are multiple ways of contributing to our efforts and we provide several career opportunities.
We are roughly 35 people, mostly working at the Wikimedia Deutschland office in Berlin.
Our development teams are cross-functional, self-organizing and highly autonomous. No single team leaders or middle management. Developers work directly with the product owners.
What follows is an informal approximation of our teams. It is not an org-chart and it does not capture all the details of peoples responsibilities, though should still give you a good idea of how our department is structured.