Looking for a developer to build a app

I'm looking for a developer to create an app. I tried to do some stuff, but this language is not my world.

At the end is it an app for a referee containing different options (count down clock, timer, etc.)

But the most important thing is to send the current remaining seconds via WLAN to a PC as a simple string. Means every second a string should be sent (e.g. "360" for 6 minutes). 
The PC part can be done by me. I already have one listening to a WLAn connection and writing the received data to a text file.
The most important thing is that the watch sends something every second.

Of course it can only run on Wifi models (like Forerunner 645 Music, etc)

Maybe there is someone who can help.