AutoCAD Technician – Composite Basemap Preparation & DWG Cleanup

I need help with setting up composite basemap files by cleaning up DWGs that were often imported from Microstation DGNs and then bringing them into a single drawing as external references. This composite file is then adjusted to distinguish between existing and proposed features and to highlight or suppress certain features. The procedure is fairly straight forward but unexpected issues sometimes arise, requiring some problem solving skills to remedy. This has the potential of turning into a recurring gig and the scope of the work could possibly expand as well. Proficiency with standard AutoCAD is required. Proficiency with Map 3D and/or Civil 3D are a plus.