Erwin De Haan has extensive experience in sales and management, currently serving as Opleidingsmanager and Sales Engineer at Intergas Verwarming B.V. since 2006, with previous roles as Sales Manager and Trainer. Prior experience includes Sales Manager positions at Car Systems Breda, Wijmar Automaterialen BV, and Vestigingmanager at Ron de Vries Autohifi. Erwin De Haan holds ongoing technical education at ROVC Technische Opleidingen and IW Nederland, complemented by expertise gained through various commercial training programs at Kenneth Smit. Educational credentials include a degree in Elektrotechniek automotive from Technische School Alkmaar and additional qualifications in sales management and specialized sales operations.