John Diederik

John Diederik is a skilled professional in the field of industrial refrigeration, currently serving as the Manager of Engineering at Hamelink Koeling since 2022 and teaching a night course on System Design for Refrigeration Installations at Aeres Tech since 2018. Prior to their current roles, John held several positions including Project Manager at BMA Nederland BV and Celtic Koeling BV, as well as a Senior Technical Engineer at Nijssen Koeling. Their career began as a Service Inspector at Imtech Maintenance from 1987 to 1997, followed by a role as a Cool Technical Advisor at Coolmark B.V. from 2006 to 2008. With extensive experience in designing and calculating industrial refrigeration systems, John is committed to sharing their enthusiasm for the profession with aspiring technicians.