I have also acted as a visiting scientist at the Commonwealth Scientific and Industrial Research Organisation, a reviewer for the Medical Journal of Australia, and an editor and proofreader for ...
Editing begins while you are still working on your first draft. It has to do more with revising the logistics of the paper than grammar and surface-level errors. Proofreading takes place when editing ...
You can also try pitching and applying for one-off gigs on freelance marketplaces and job boards that don't have as rigid of requirements for proofreaders. Here are platforms and sites to explore.