Payment gateway

I am looking for a freelancer to help me integrate a payment gateway for my new enterprise. The ideal candidate should have experience in setting up payment gateways for new businesses.

Requirements:
- Integrate credit card payment methods
- Experience with other payment gateway providers (not Stripe or Square)

Skills and Experience:
- Familiarity with setting up payment gateways for new enterprises
- Proficient in integrating credit card payment methods
- Knowledge of alternative payment gateway providers
- Knowledge of NFC payment processing: ApplePay, GooglePay, SamsungPay etc.

If you have the necessary skills and experience, please submit your proposal.