AUTHORIZE.NET Recurring Billing Integration with PHP/Boostrap Website

Looking for a competent PHP coder to build and integrate [login to view URL] automated recurring billing (subscription billing) into an existing website made in bootstrap. The site sells 3 packages and needs to build a checkout using existing css elements in the bootstrap template. I am only taking bids from freelance coders THEMSELVES. NO companies or guys who are going to outsource the work to a team or to anyone else. Bid if you are yourself a PHP coder who speaks great English and is available on Skype to start working immediately. You must have experience integrating [login to view URL] and SPECIFICALLY have experience integrating [login to view URL] recurring billing API with a PHP site. **Please do not bid if this your first time with this specific API integration.** No design work is required - use only existing css elements in the template to maintain consistent design.