Hello,
I am confident that I can help you surely because i have good experience with this kind of project development before.
i have knowing of many payment gate way along with bitcoin.
We specialise in: PHP & PHP frameworks, WordPress & Woocommerce, Laravel, CodeIgniter, Opencart, Magento, API development, HTML5, CSS, JavaScript, Bootstrap, MySQL, etc.
We are well specialized in developing cryptocurrency like BTC, LTC, ETH, ICO, XRP exchanging & trading system, blockchain implementations, ethereum solidity and truffle, fork on litecoin, smart contracts & websites so would like to offer our services regarding your E-commerce website.
Thanks!