Development of smart LPG meter

I am looking for an engineer to help design, component selection and build of various functions of an LPG gas meter.

This will include:
- Gas Flow Sensor
- Microcontroller
- Display
- Recharge Module (NFC/QR Scanner/Keypad)
- GSM/Wi-Fi Module
- MQ6
- Ball Valve

All data from the meter to be pushed to cloud (This will be provided)