Gert-Jan van Duuren has an extensive career in supply chain and operations management, with a tenure at Vandersterre Groep since October 1988, where currently serving as Manager inkoop, overseeing food and non-food procurement and managing the purchasing department established in 2012, while also engaging in B2B sales activities. Previous roles at Vandersterre Groep include Manager operations, responsible for the overall operational organization, including process management and direct oversight of staff, and Logistics Manager, focusing on logistics, planning, and inventory management. Earlier experience includes a position as Magazijnchef at Jagibo kaas BV from August 1978 to September 1988, where duties involved managing warehouse operations, leading a team of approximately 15 employees, and handling planning and organizational tasks.