To write articles on the topics you define. 

You can take a look at my portfolio links:

1) Articles in German:  https://docs.google.com/spreadsheets/d/1zStet-B-95QOKIFqJPCg54FH9HAY-KWCX4AfUz7cBpQ/edit#gid=0

2) Articles in English:  https://docs.google.com/spreadsheets/d/1qczx-0XFB3QhjsAOiDwuMyKQtwI7Y4lpwAiuBwmrj-s/edit?usp=sharing

3) Articles in Russian / Ukrainian: https://docs.google.com/spreadsheets/d/1-oVkzq3vve93WQqcVfKwBw8uvpqZFBZF1Rnd9ctknXg/edit#gid=0

 to get a feel of the style and decide if that is what you are looking for :) 

The quoted rate is for 500 words. It is indicative and I am open to other requirements and negotiations too.