Hi! I am a computer scientist from Guatemala, I studied in the USA for a few years, so I can speak and write English almost perfectly. I also have plenty of experience and I can send an example right away. As a writer, I like to run every article in Grammarly premium, just to be sure there is no plagiarism and no grammar mistakes on my work. I couldn't find where to attach a file, but if you contact me I can show you a great variety of articles.