He taught at the University of Essex as a Lecturer, Senior Lecturer, and then Reader from 1966 to 1984, before joining SSEES, where he held the established chair of Russian History from 1984 to 2007.[3] He also held a Leverhulme Research Professorship in Russian History at SSEES from 1999 to 2004.[4]
Hosking presented the BBCReith Lectures in 1988.[5] His aim was to explain the dramatic changes of the Mikhail Gorbachev era in their historical context.
Most of Hosking's works until this point had dealt with twentieth-century Russia and the Soviet Union, but after the collapse of the Soviet system he turned his attention to earlier periods of Russian history, producing Russia: People and Empire, 1552-1917 and Russia and the Russians. In these books, Hosking emphasized the polarity between the Russian Imperial idea (denoted by the term 'Rossia') and Russia's ethnic nationhood (defined by the older term of 'Rus').[6] According to Hosking, the development of the Russian Empire prevented the development of Russia as a nation state. In his next book Rulers and Victims - The Russians in the Soviet Union, Hosking examined aspects of this polarity in the Soviet context.
Hosking retired from UCL SSEES in December 2007. The established chair that he held was reinaugurated in 2008 as the Sir Bernard Pares chair of Russian History. Its first incumbent was Hosking's former research student, Simon Dixon. From 2016 to 2017, he served as a director/trustee of the School of Civic Education in London (formerly the School of Political Studies in Moscow),[7] which forms part of an association of schools of political studies, under the auspices of the Directorate General of Democracy (“DGII”) of the Council of Europe.[8]
^‘HOSKING, Prof. Geoffrey Alan’, Who's Who 2013, A & C Black, an imprint of Bloomsbury Publishing plc, 2013; online edn, Oxford University Press, Dec 2012; online edn, Nov 2012 accessed 12 Nov 2013