Cor Klok has extensive experience in software testing and coordination, currently serving as Testcoördinator and Softwaretester at Vrieling Adviesgroep since September 2020, where testing of Vrieling websites and related backoffice systems is performed. Previous roles include Configuratie- en Testspecialist at Ultimo Software Solutions bv, Testanalist at FBTO, and Testanalist/Testcoördinator at Achmea, where responsibilities included conducting functional tests in Agile teams and leading test coordination for various projects. Cor Klok also has a background in application management and technical problem-solving from positions at Achmea Zorg, Groene Land Verzekeringen, and Het Groeneland, and holds a diploma in MEAO BA from Hanze College.