Hey there,
I understand a little bit about you are looking for a person to make corrections in other's website script which you have and want to integrate into your own site or making an API for you to resolve your issue about getting data from another server to your own server.
If I am right, then I can do your job at TeamViewer right now.
Because! I have 6+ years of experience in PHP, MySql, Javascript, HTML, CSS
So, Please let me know if you required help.
Thanks :)