Jonas Halling is an experienced application developer with a strong background in financial technology. Currently serving as an AVP for Citi since May 2021, Jonas plays a key role in maintaining a domain-specific scripting language and API for the commodities indices team, utilizing full-stack development skills. Prior to this, Jonas worked at Deutsche Bank as an Application Developer from July 2017 to April 2021, focusing on applications for FX teams that improved risk and present value calculations. Additional experience includes tutoring mathematics at the University of Warwick, technology internships at Deutsche Bank and Lloyds Banking Group, and a robust educational foundation with an MMath in Mathematics from the University of Warwick.