Welcome Haitham!
Just for a bit of clarification, the post says:
Haitham is joining the Wikimedia Foundation in order
to support new
editor growth on small-to-medium sized Wikimedia projects,
And then...
Haitham will be beginning his work with the Arabic
Wikipedia
community, and based on what is learned there, he’ll be moving into
other languages and geographies soon.
So it sounds like when small *projects* are spoken of this means
'small wikipedias' not, say, Wikiversity. Is that an accurate reading?
Bodnotbod