Two postdoc positions are advertised in the approximately 30 member quantum group, led by Samson Abramsky and Bob Coecke:
http://www.cs.ox.ac.uk/activities/quantum/
The group has a has a multidisciplinary research activity including the areas of quantum foundations and quantum computation, category theory, computer science logic and AI including computational linguistics.

The applicants are expected to contribute to one of the ongoing research strands within the group. One of the successful candidates is expected to contribute to the development of quantum reasoning software, and its exploitation in quantum foundations and quantum information. Given constraints regarding visas etc., the aimed startdate is October 1st.

Further particulars can be found here:
http://www.cs.ox.ac.uk/news/378-full.html