Magento Checkout Redirect Customization

I need a Magento developer to streamline our checkout flow by completely bypassing Magento’s native payment step. The moment a shopper clicks “Pay”, the site must hand off to Ebizmarts Payment Suite 10 – Opayo, carrying over only the order summary (no full cart or line-item data)... (Budget: £20 - £250 GBP, Jobs: HTML, Magento, Magento 2, Payment Gateway Integration, Payment Processing, PHP, Web Development, Website Design)