Hi, thanks for posting your project!
I can see you're not an IT specialist. It's normal, but with this task it's an obstacle on the way to result.
I'm an IT guy, have extensive experience with customer requirements collection, programming, and project management. Before placing an actual development requirement, you have to write it, but you need skills to do it correctly. Otherwise, you'll get not what you wanted and just waste money.
What I offer as an IT professional is a requirement analysis. We will have 2-3 talks over Skype or WhatsApp, I'll ask a series of questions. Some of them will need some time for you to answer.
As a result, I will create a detailed technical specification that a software developer will clearly understand. I will also prepare a description of developer requirements so that you could find a suitable programmer.
I'll bill you about 2-4 hours for my work.
I can also support you later during the development process, to help you control the quality and avoid extra costs later.
I'm looking forward to your questions!
Best regards,
Nikolay Komarov