AutoDesk Revit is a building information modeling (BIM) software system. Architects, engineers, and drafters use it to create 3D structural drawings of buildings. Freelance jobs that use Revit involve creating 3D models for clients on an independent basis. As a freelance architect or engineer, you make architectural models based on your client’s specifications, submit the plans, and change aspects based on client feedback. A structural engineer or interior architect may add to existing plans, and the duties and responsibilities of a drafter or BIM software specialist involve using existing data and two-dimensional drawings to draft a 3D rendering.