Graduated from University of Sheffield with a MEng(Hons) in Mechanical Engineering in 1995 before graduating from the MSc Aerodynamics course at Cranfield University the year later. Completed a PhD in high speed aerodynamics at Cranfield while working for the Defence Research Agency, where Simon worked on experimental and CFD projects ranging from missile, civil and combat aircraft aerodynamics and propulsion integration. Was at City University of London from 2004-2014, completing a MA in Academic Practice in 2010. Simon helped establish and was seconded to the UK Aerospace Technology Institute until 2017. He is secretary of the Association of Aerospace Universities, a member of the ESDU Transonics committee and the UK Vertical Lift Network.