IoT Small Application -- 2

I want a developer for a mini-IoT application by the use of mbed kit (u-blox C030-U201 IoT Starter Kit). This project is for tracking a kid location. the system will locate the mother location by her phone SIM card, and will locate the child location by the kit gps locator. if the distance between them exceeds a specific number, the information will be sent to a cloud server which will send a alarm message for the mother phone number. I want someone expert to work on this project during 4 days with payout of 100$