Fionnbharr Gaston is an accomplished kdb+ developer currently working at Barclays since September 2024. Prior to this role, Fionnbharr spent over a decade at First Derivatives, serving as a Senior kdb+ Developer from June 2011 to October 2024, and concurrently held the position of Managing kdb+ Engineer at KX during the same timeframe. Fionnbharr holds a Master of Science (MSci) in Applied Mathematics and Physics from Queen's University Belfast, attained in 2011.