Diederick van Biessum has extensive experience in IT and service delivery, currently serving as a Service Delivery Medewerker at Mastermate since March 2024. Previously, Diederick held the position of Team Lead at Bouwatch while working at TEKsystems from March 2022, overseeing projects involving SAP ByDesign, Salesforce, and in-house applications. Diederick's career includes significant roles at Aareon NL, focusing on ICT support and functional application management, and experience as a System Engineer at TKP, where responsibilities included supporting Oracle applications and managing various migration projects. Additional past roles range from system administrator duties at Zorgcombinatie Noorderboog to sales management at Digihuis. Diederick holds an MCSE in Information Technology and completed Havo education at De Dissel, Emmen.