First of all, if you are paying USDT, then the thread should move from Service section to Service Discussion (Altcoins) board. The service section should pay in BTC. Either you have to move the thread or edit the payment method. You must include BTC/USDT, if you want to keep the thread in this section.

Regarding hiring developers, most likely project development section would help you. You might get quickly what you are looking for.