Build a web application (beta version) from a set of established wireframes. Include interactive features, user login/sign up page, communication with back end server to process simple data as well. Freelancer should also be able to develop both front end and back end.
If the working relationship goes well, full/part time employment maybe offer to develop the web application further to include payment gateway, API etc.
Preferred developer based in Singapore for easy communication and potentially future collaboration.