Hi, I have got experience of technical/research/article writing with international clients including the United Nations. Although I am not native English speaker, I have got 8.5 overall IELTS score, which is as good as native speakers. I mostly write on science and business topics. I am confident to provide you high quality, well researched and plagiarism free content with good readability score. Once, I get to know the topic, I will be able to offer you a competitive bid.
By the way, I see you're from Bangladesh. Since, I am native Bengali speaker, I can also write content on Bengali, if needed.