payment gateway in pakistan or UAE

I am looking for a freelancer to help me integrate a payment gateway into my existing website in either Pakistan or UAE. The preferred payment gateway provider is 2Checkout, checkout.com, stripe, PayPal.

Ideal skills and experience:
– Experience in integrating payment gateways into existing websites
– Familiarity with the 2Checkout payment gateway
– Knowledge of the payment gateway regulations in Pakistan or UAE.