Dr Gu is currently guest professor with several Chinese institutes and universities. Since January 2017, Dr Gu has been working as a Research Fellow for the Australian Institute for Bioengineering and Nanotechnology at the University of Queensland. In addition, from April 2021 to March 2023, Dr Gu was the Chief Scientific Officer of Guangzhou Gillion Biotherapeutics Ltd, a biotechnology company. From 2006 to 2009, he held a Perter Doherty Fellowship and was supported by the National Health and Medical Research Council to work at Harvard Medical School as a visiting research fellow. Dr Gu is member of risk management committee.