Small suggestion. You're asking people to follow a 40 hour / week schedule but are only paying upward 2400 USD / month.
Including tax cuts, I'm pretty sure that's less than minimum wage
I'd up what you're paying to 1200 / week atleast, if you're looking for someone worth it to code for your 40 / hours week. (Bare in mind, 40 hours weekly is a full-time job schedule).