If that’s coming from AutoCAD, those coordinates are likely either based on a local coordinate system (established for a particular site), or the content of the AutoCAD DWG file was placed around 0,0 (which is common when not explicitly basing element coordinates on an established coordinate system).
The first step will be to figure out what coordinate system the AutoCAD DWG file is using. If it’s not already based on an established coordinate system, you may have to manually move all of the elements to an established coordinate system (like a State Plane or UTM system).
Once the content is in an established coordinate system, you can use a Reprojector to reproject the features you’re reading in, or an AttributeReprojector just to reproject the “autocad_alignment_x” and “autocad_alignment_y” attributes to longitude/latitude.