Jan Wijdemans fulfilled various positions in the Air Force, Defence and UN missions as an Ammunition Technical Officer, EOD/IED operator, Royal Netherlands Air Force (RNLAF) EOD commander and advisor. In the RNLAF he took part in government quality assurance and the development of airworthiness policy in the Air Force, which contributed significantly to his awareness of explosives safety.
His civil qualifications are mechanical engineer, quality expert and quality engineer.
Today he represents the MTM and MTM CE foundations as a Senior Technical Advisor. MTM is the custodian of a unique collection of inert munitions and associated training aids. This collection is the basis of the mission of the MTM Centre for Expertise on Explosives & Energetic Materials. Jan Wijdemans chairs a working group to analyse actual processes leading to effective education, training and exercises in the area of military and civil cooperation with a focus on Explosive Remnants of War and Improvised Explosive Devices.