We need a developer with proven experience utilizing the Paypal Pre Approval API.
Pu rproject is a mobile application, which uses web view to port Paypal (since our implementation is not supported by their mobile SDK).
We do NOT want "I have done Paypal I can figure out this API, Paypal makes it easy." Our project is nuanced, and we want someone with proven experience implementing this API for web or mobile.
We have a front end developer and another backend guy familiar with the code and Env.
Backend framework is Cake PHP
If you say, "I have done Pre Approval API!!" in your response, then show an example, it will set you apart from the crowd ;-)