University Lecturer in Papyrology and Greek Literature and Fellow and Tutor in Greek at Christ Church College, University of Oxford.
Research Associate of Corpus Christi College, University of Oxford, and Postdoctoral Researcher in Papyrology for the Oxyrhynchus Papyri Project, University of Oxford, and the Adler Planetarium in Chicago, Illinois.
Research Associate and Postdoctoral Researcher on the 'Imaging Papyri' and 'Ancient Lives' projects at the University of Oxford.
IT Assistant on the 'Imaging Papyri' project.
Researcher in Astrophysics and 'Citizen Science' at the University of Oxford, where he leads the Zooniverse project of which Ancient Lives forms part.
Director of Citizen Science at the Adler Planetarium, Chicago and technical lead of the Zooniverse.
Software developer at the Adler Planetarium in Chicago.