Node.js mqtt adding funktion to existing things

Need someone with experience in mqtt and Node.js, for a relatively simple job, we got an IOT system running with a mosquito broker, and need someone to add a "Console" to our admin panel. By console i mean make a button, when this button is clicked messages from unit specific topic must be shown. Topic in this case will be Topic: Imei number of device/debug message: debug messages from device. must be shown in scroolable window on the other hand we must be able to write back to the device: Topic: Imei number of device/write Message: what ever is written in the text box This should be a simple project for someone with experience in both Node.js and mqtt/ the mosquito broker.