Hossein has more than 10 years of experience with hydrotechnical field work, 1D, 2D, and 3D hydrologic and hydraulic modelling, mine water management, water balance, stream diversion design, flood hazard and inundation mapping studies, tailings and water dam breach modelling, and river-bank-protection hydraulic modelling. He has managed numerous projects involving mine water management, river and coastal hydrodynamic and dispersion modelling, flood hazard and inundation mapping studies, dam breach inundation studies, and civil design. He has been a project engineer and a project manager on several flood hazard and flood inundation mapping studies, and dam breach inundation studies. Hossein has served mining clients in oil-sands, coal, and potash with various hydrotechnical analysis and design. He is highly experienced in surface water hydrology and hydraulics. He has served as a key modelling specialist for 1D and 2D hydraulic modelling studies on various rivers in Western Canada for several clients including the City of Calgary, Alberta Environment and Parks, and oil and gas clients. Hossein has been a sessional instructor at the Southern Alberta Institute of Technology (SAIT) and at the Civil Engineering Department at the University of Ottawa since 2019.