Jeroen Reijling is an experienced Application Engineer at Optiver since May 2020, while simultaneously serving as a voluntary fire brigade member at Veiligheidsregio Zaanstreek-Waterland since May 2018. Previously, Jeroen worked at Microsoft for a decade, primarily as a Solution Architect, focusing on pre-sales and deployments of Office 365, and held roles involving Unified Communications solutions. Other notable positions include Business Consultant at Vodafone and Group Manager at Avanade Netherlands, where Jeroen specialized in Unified Communications technologies. Jeroen's educational background includes a Bachelor's degree in Information and Communication Technology and Business IT & Management from Amsterdam University of Applied Sciences, along with a branding course from the University of Amsterdam.