Particle Electron to Arduino with GPS/BLE/SIM

Hi, Minimum exp of 5 years is needed in developing Embedded systems using open source like Arduino,nodemcu,SIM 800,900 and give a feasible solution quickly. Need to work at our office,assemble and make a device ,code already there ,need to add an API call . Duration:2-3 days Work location:Visakhapatnam Only apply if you can work at our location Budget:200$