BigCommerce Payment Gateway

HI, We are looking for someone who can add our local payment gateway in the BigCommerce. We use a payment gateway which is not listed under bigcommerce checkout. We need a programmer who can do customization to the files in bigcommerce hosting solution and be able to add 5 parameters which the local payment gateway ask for it to be sent to: The customer will be able to select the payment options, if he select the local payment gateway, it will redirect him to their secure web hosting page with these parameters below where he can put his credit cards safely. 1- The unique order ID. 2- Currency 3- Amount. 4- Return page if Credit card was valided. 5- Return page if the credit card was OK.