Need small changes in stl

I need a freelancer who can make some small changes to an STL file for 3D printing. Specifically, I need some details removed from the file. I don't need any specific measurements or proportions maintained, just a rough estimate will do. The modified STL file will be used for 3D printing. The ideal freelancer for this job should have experience with 3D printing and be proficient in modifying STL files.