I'm a big data architect and am looking for such opportunities. I'd like to write about installation and security of various Hadoop distributions. I've installation and limited development experience with all major distributions - HDP/CDH/MAPR etc. I strongly feel that the content's quality should matter more then the number of words. My style of blogging is to explain concepts using diagram as well as proper references so that due credit is given to the original contributors. Next, I'd not want to be a ghost writer, if you choose me, I'd like to have a name on the blog that I write for you.
If my explanation interests you, I can provide you with my LinkedIn profile where you can find samples of my writing as well. Do let me know.