Looking for tech writers

I’m looking for a tech writer to write blog post and work with me in a long term. Please respond if you can write in the following topics:

Programming
Software developer
App/game monetization
Crowdsourcing project
Open source software

And more related to software/game building.

You will write 1000-2000 words article covering above topics. I need more than 50 articles and I will pay $20-$50 per article.

Please apply with links to your previous works

Thanks