Looking for an experienced "APIs INTEGRATION" developer.
I want you to add the integration option for the following APIs within my software:
1- Email Autoresponders: Aweber, MailChimp, GetResponse, iContact, ConstantContact
2- SMS Gateway: Twilio
3- Transaction Emails: MailGun
4- Payment Gateways: PayPal, Stripe
No payment will be released if you would not complete the job. I want you to be 110% sure that you can deliver a complete project before accepting this job. Partially or incomplete work would be useless for me.
I also want to add eSignature feature. HTML pages are ready; so you mainly have to work on backend coding.