Hi! I am very interested in working on your project. I've done fully funtional IOT prototypes in Arduino (Uno, Nano, Mini, Mega),as well as ATTiny85 and ESp8266 (ESP-07 & ESP-12E) using AutoDesk Eagle & CircuitMaker.
Regarding the code, I offer you a simple and elegant solution, plus any diagram or schema that you may need to understand how the solution works. I have experience with most cloud platforms as Blynk, Cayenne and Thinkspeak.
In my portfolio you can view some images and photos of one of my latest designs.
I'm open to improve my offer in terms of price depending on deadlines and functionality.
Thanks, Regards