Development of software to communicate with 'TNT ExpressConnect' and 'UPS online tools'.<br/><br/>The software has to be able to perform the following operations:<br/>- Compare prices and services of the different couriers<br/>- Place a shipping order.<br/>- Track a shipment by a generated id or native id from the shipping provider.<br/><br/>The system will be connected to an in house built ERP system by a SOAP connection. (The needed changes in the ERP system will be made by us)<br/><br/>The system has to be prepared for addition of other shipping providers. (For example DHL, FedEx etc.)<br/><br/>Knowledge of the following techniques is required:<br/>- XML<br/>- SOAP<br/>- Object oriented programming<br/>- PHP<br/>- PDO<br/>- Unit testing<br/><br/>