Writer for blog posts - English native speakers only

We have a number of blog posts that need to be written; plus an e-book.
I'm looking for a talented, hard-working writer; who can start immediately - today or tomorrow literally.

Type of copywriting: Blog post
Length of copy / word count: Medium / 500 words
Subject: marketing articles
Knowledge of subject: Maybe, I don't mind
Language(s): English
Language level: Native (first language)
Tone of voice: professional