During my short carrier as an assistant civil engineer I have already taken a role in every part of a design process. My main task was to perform situation analysis in terms of hydro-engineering, preparation of construction designs and executive projects, acquisition of permits and finishing of process by issuing complete documentation to the client. Preparation work consisted of settling the volume of discharge in terms of regular flow and high water, creating existing terrain model in AutoCAD Civil (basing on .las files and surveys), designing the required structures, exporting terrain and cross sections to the HEC – RAS, settling boundary conditions, modeling structures and performing steady and/or unsteady flow analysis. Often analysis was performed to test my designs (e. g. culverts, reservoirs, floodgates etc.), which were checked by licensed engineers. Next step was conclusion of my work, creation of appropriate drawings and technical specification. Currently I’m focusing on further developing my 3D/BIM designing skills.