Hello.
I read your post and am very interesting in your job.
Especially, I know PayPal API very well.
A payment API refers to technical calls that enable the processing of a transaction.
And I can fix your bug in short time.
And I know Angular.js and Mysql and PHP.
Angular.js is power frontend framework.
If using this framework, develpment speed will be quickly.
In other words, I am confident your job.
If you hire me this job, I will best for you.,
Thanks for reagards.