Wikimedia Discovery

The Search and Discovery Department of Wikimedia Engineering works on search and discovery.

CirrusSearch
The CirrusSearch extension implements searching for MediaWiki using Elasticsearch and is the search backend used at WMF.

OpenStreetMap
The OpenStreetMap/Production maps cluster is a project to make OpenStreetMap available on all Wikimedia projects, at a scale sufficient for their widespread usage.

Wikidata Query Service (WDQS)
Wikidata query service provides a way for tools like WikiGrok to access Wikidata data, via a SPARQL API.

Mailing List
Wikimedia-search

Meeting Minutes
Wikimedia Search Team/Meeting Minutes

Deployers
Useful reference for who can deploy code. Its nice to know who to bug if you need something: