Gerrit-Jan is one the first LEED Accredited Professionals in the Netherlands. He is responsible for the first LEED certification in the Netherlands (november 2010), and is currently responsible for the majority LEED registered projects in the Netherlands. As a consultant in energy and sustainability at TRAJECT, he gained experience in green building (design as well as operations and maintenance) in sustainable projects in the Netherlands and in abroad countries (e.g. Brazil, Dubai, Hungary, Switzerland). His contribution to project teams are energy technology consultancy, cost calculations, design management, management consultancy, integration management, maintenance planning etc. He developed several training programs for in-house training of sustainable practices at several multinational companies. As a result, knowledge of energy technology, regulations, construction costs and management skills are developed in a high level and a practical matter. Gerrit-Jan is always triggered when custom-made solutions are needed for non-standard situations, and will definitely be pleased to share ideas and thoughts with any audience.