I need a structural design expert -- 2

Job ID: 34478668

Budget: $250 – $750 USD

I have a 3 floor building and would like to make a room on the roof.
So I need a structural designer who can do structure strenthen design/calculation, drawing for
construction, interior design and high quality rendering.
The person to be hired has to own high skill of SketchUp and StaadPro.