Abstract: Embodiments of the disclosure provide systems and methods for utilizing new connected Internet of Things (IoT) devices without software updates to the IoT gateways or mobile devices. According to one embodiment, a method for configuring an Internet of Things (IoT) device can comprise connecting, by a gateway device, with the IoT device and a configuration service in response to discovery of the IoT device. The gateway device can comprise, for example, a mobile device executing a gateway application. Configuration data for the IoT device can be acquired by the gateway device. The configuration data can comprise one or more expressions for converting data from the IoT device to a predefined data model based on one or more characteristics of the data from the IoT device. The gateway device can apply the acquired configuration data for the IoT device and process notifications from the IoT device using the applied configuration data.