1- Aburihan Teb Aria Company from 2011-2015 (Trita Hospital) in the position of supervisor of the HVAC including (general ventilation facilities and surgical rooms - fire extinguishing system - central power room and supervisor of the implementation of the electrical system of the central power room)2- Borj avaran Development and Construction Company, since 2015 until now, in the position of mechanical HVAC supervisor-mechanical HVAC/R designer-Executive Supervisor of electrical installation and preparation and adjustment of Asbuilt plans in projects:-Merina residential project, 25,000 square meters.-Matia residential project, 65,000 square meters.-Hayat Sabz Pasdaran administrative - commercial complex, 85,000 square meters.-Matia Mirdamad administrative-commercial complex, 85,000 square meters.