Adobe E-Commerce (Magento) Extension Development

Need to develop Magento extension to connect to JSON web service API. The extension is to incorporate automated sales tax solution to calculate taxes from within Magento application. We have client who wants to calculate taxes on invoices in Magento, we found web service and now we trying to develop an extension that connects to the web service.

Recent experience in developing Magento extensions is a must.

Send message if interested. This fixed pay task, paid on delivery.