I have a bachelor's degree in railway rolling stock engineering and also have a master's degree in Geotechnical engineering. But most of my activities have been in the field of railway engineering and I have academic and research activities in the field of geotechnics.My first rail activity was in the field of importing rail equipment for urban train and railway organizations in Iran. My activities was in fields of: Railway measuring tools, depot equipment and superstructure and accessories supply.Now I am working as project technical manager for Tiwan Tormoz Company which is representative of KES (Keschwari Electronic Services) in Iran. Our main project is National Metro Train Project (NMTP) and I am working on:• Design, installation and commissioning of the braking system of the first national metro train of Iran project (NMTP). Perform static and dynamic tests of brake system operation of national metro train of Iran. • Design and construction of secondary pneumatic suspension system.• Construction of train doors and installation of door systems including mechanisms, door control unit and doors.