Good day,
With over 11 years on Moodle in over 17 years in elearning, I know I can help, I am an expert in my field. As you have selected skills like PHP & MySQL you should expect more bid, Moodle is basically based on PHP, but cannot accept regular PHP coding as it has it's own built-in framework.
I know I can work on Moodle well, but even though it has some limitations in development, so this makes it not a direct coding as most coder think.
If I get to work with you, I should be able to tell you that a specific thing could be done or not, so this is not a bid as there is no details of specific tasks required.
Kindly contact me in order to chat in details.
Best regards,