High-quality German proofreader needed

We are searching for a proofreader-editor who could work on proofreading tasks and help with our language barrier in German.

If you are a professional, experienced proofreader with impeccable grammar skills, who do not miss a thing and leaves no mistakes in the text, you will be an excellent fit.

Our budget is 20 USD for 900 words article. Currently, we need only one article to be proofread, but our collaboration may continue in the future.
The article consists of translation and writing part, so you should proofread both skills of our writer/translator.

Please send us your proposal if you are interested in this job, and we will contact you if we find that you are the best choice for this task.