Internet of Things (IoT) has been growing over the last few years in multiple applications and due to the high consumption of the GPS for tracking capabilities, an innovative opportunity arises. This thesis aims to design and implement a tracking IoT system in a LPWAN which is capable of transmitting the current position using low power technologies such as LoRa. The whole system consisted of an end-node, four gateways, a server and a java application to store the obtained data in a MySQL database. A GPS was also used in the end-node to obtain the error in the estimated position computed by the multilateration algorithm. The data was analyzed in Matlab to present results of the accuracy.