I have worked in a construction company for 4 years. I was the one who supervises the site to check if the drawings were implemented correctly. I was an all-around staff. Aside from working drawings, and site supervision, I also handled the materials to purchase. I've been using Autocad 2D Software for 8 years and I know the importance of layers and scale. I used Sketchup for 3D but now I am practicing to use Revit Architecture because it's BIM already.