Automated Device 3D Model Redesign

Hi, I am looking for an experienced CAD / product design engineer to professionally redesign and finalize an existing 3D model of a compact automated device. I already have a basic STL model that shows the general shape, size and layout I want... (Budget: €12 - €18 EUR, Jobs: 3D CAD, 3D Design, 3D Drafting, 3D Modelling, 3D Rendering, CAD / SolidWorks, Product Design, Solidworks)