I pretty much stopped freelancing once oDesk and Elance merged into Upwork, but back then I could probably earn between 10k and 20k USD annually before taxes. A

I pretty much stopped freelancing once oDesk and Elance merged into Upwork, but back then I could probably earn between 10k and 20k USD annually before taxes. Admittedly, I'm a lazy programmer. Good luck with your project!