It functions as "at". And I would use "at" in that sentence.
Erene Palechorou works as a full-time teacher in Cypriot primary schools and is currently completing her PhD thesis with the Univesity of Warwick, UK. (Quoted from Second Language Learning through Drama)
What does with mean in the above sentence?
I need native speakers' help.
As she is apprently working in Cyprus, I imagine that she is completing her thesis on-line or by correspondance with, rather than at, the University of Warwick.
"Invading armies have no rights." Noam Chomsky
As we so often point out to learners, if you want to express your agreement with or gratitude for someone else's post, simply click on "Like" or "Thank".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.