George obtained his Astrophysics PhD, "Probing the Milky Way galaxy through thick and thin (discs and halo) with the Correlation Radial Velocities (CORAVEL) and Radial Velocity Experiment (RAVE) surveys" from Cambridge in 2007, supervised by Gerry Gilmore and Wyn Evans. Ever since then he has been a post-doc funded by the UK Gaia grant. After his PhD, he joined the e2v centre for electronic imaging (CEI) at Brunel University. The CEI (and George) moved to the Open University in 2008. During this position, George modelled Gaia's e2v CCD pixel architecture, including the Supplementary Buried Channel, as part of the DPAC Working Group (WG) Radiation Task Force, CU5 DU10 and CU6.
In 2010, George moved to the Mullard Space Science Laboratory (MSSL), part of University College London, to become a Gaia Radial Velocity Spectrometer (RVS) Data Flow Scientist within CU6. As scientific lead of the MSSL Gaia team, George is involved in all aspects of MSSL's software contribution to CU6: Pre-processing, Calibration, Extraction and Multiple Transit Analysis. Through his RVS calibration role, George represents CU6 in the following DPAC WGs: Radiation Task Force, Offset Instability Task Force, Ground Based Observations for Gaia (GBOG) and Gaia Archive Preparation (GAP). He is also co-leading the Spectro Science Alerts and from January 2015 is a CU6 Deputy Manager.