Greetings!
I'm available to either do a simple proofreading as if the code is meant to be delivered as an academic assignment or complete code review for a small or medium software. For small software, I can also write unit tests without any additional fees, so you'll feel more confident when you need to make modifications to your code.
Should you have any questions, I'm available through the freelancer.com platform's chat or skype/teamviewer.
Thank you for your attention,
Matheus Assis